Genomics Reporting Implementation Guide
3.0.0-ballot - Ballot International flag

This page is part of the Genetic Reporting Implementation Guide (v3.0.0-ballot: STU 3 Ballot 1) based on FHIR (HL7® FHIR® Standard) R4. The current version which supersedes this version is 2.0.0. For a full list of available versions, see the Directory of published versions

Resource Profile: Variant - Detailed Descriptions

Active as of 2023-12-18

Definitions for the variant resource profile.

Guidance on how to interpret the contents of this table can be found here

0. Observation
ShortVariant
2. Observation.code
Short69548-6
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69548-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
4. Observation.value[x]
[x] NoteSee Choice of Data Types for further information about how to use [x]
SlicingThis element introduces a set of slices on Observation.value[x]. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
6. Observation.value[x]:valueCodeableConcept
Slice NamevalueCodeableConcept
Definition

The presence or absence of the variant described in the components. If not searching for specific variations and merely reporting what's found, the profile's value should be set to 'Present'.

ShortIndeterminate | No call | Present | Absent.
Control0..1
BindingThe codes SHALL be taken from LOINC Answer List LL1971-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
8. Observation.method
ShortSequencing | SNP array | PCR | Computational analysis | ...
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL4048-6
10. Observation.component:representative-coding-hgvs
Slice Namerepresentative-coding-hgvs
Definition

Human Genome Variation Society (HGVS) nomenclature for a single DNA marker. The use of the nomenclature must be extended to describe non-variations (aka. wild types) see samples for wild type examples.

ShortDNA change (c.HGVS)
Control0..1
12. Observation.component:representative-coding-hgvs.code
Short48004-6
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48004-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
14. Observation.component:representative-coding-hgvs.value[x]
ShortA valid HGVS-formatted 'c.' string, e.g. NM_005228.5:c.2369C>T.
Control1..?
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
16. Observation.component:genomic-hgvs
Slice Namegenomic-hgvs
Definition

Description of the genomic (gDNA) sequence change using a valid HGVS-formatted string.

ShortGenomic (gDNA) Change - gHGVS
Control0..1
18. Observation.component:genomic-hgvs.code
Short81290-9
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81290-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
20. Observation.component:genomic-hgvs.value[x]
ShortA valid HGVS-formatted 'g.' string, e.g. NC_000016.9:g.2124200_2138612dup
Control1..?
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
22. Observation.component:cytogenomic-nomenclature
Slice Namecytogenomic-nomenclature
Definition

Fully describes a variant with a single code. Typically a large variant such as a mosaic, abnormal chromosome numbers, etc.

ShortCytogenomic Nomenclature (ISCN)
Control0..1
24. Observation.component:cytogenomic-nomenclature.code
Short81291-7
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81291-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
26. Observation.component:cytogenomic-nomenclature.value[x]
Control1..?
Binding

Binding not yet defined

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
28. Observation.component:genomic-ref-seq
Slice Namegenomic-ref-seq
Definition

ID of the genomic reference sequence, which includes transcribed and non transcribed stretches

ShortGenomic Reference Sequence
Control0..1
30. Observation.component:genomic-ref-seq.code
Short48013-7
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48013-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
32. Observation.component:genomic-ref-seq.value[x]
ShortVersioned genomic reference sequence identifier
Control1..?
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
34. Observation.component:representative-protein-ref-seq
Slice Namerepresentative-protein-ref-seq
Definition

ID of the protein reference sequence, which includes transcribed and non transcribed stretches. It covers the entire protein described.

ShortProtein Reference Sequence
Control0..1
36. Observation.component:representative-protein-ref-seq.code
Shortprotein-ref-seq
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;protein-ref-seq&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
38. Observation.component:representative-protein-ref-seq.value[x]
ShortVersioned protein reference sequence identifier
Control1..?
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
40. Observation.component:representative-transcript-ref-seq
Slice Namerepresentative-transcript-ref-seq
Definition

NCBI's RefSeq ('NM_...'), Ensembl ('ENST...'), and LRG ('LRG...' plus 't1' to indicate transcript)

ShortReference Transcript
Control0..1
42. Observation.component:representative-transcript-ref-seq.code
Short51958-7
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;51958-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
44. Observation.component:representative-transcript-ref-seq.value[x]
ShortVersioned transcript reference sequence identifier
Control1..?
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
46. Observation.component:exact-start-end
Slice Nameexact-start-end
Definition

The exact integer-based genomic coordinates of the start and end of the variant region.

ShortExact Start-End
Control0..1
48. Observation.component:exact-start-end.code
Short81254-5
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81254-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
50. Observation.component:exact-start-end.value[x]
ShortRange in question. 'High' can be omitted for single nucleotide variants.
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
52. Observation.component:inner-start-end
Slice Nameinner-start-end
Definition

The genomic coordinates of the narrowest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.

ShortInner Start-End
Control0..1
54. Observation.component:inner-start-end.code
Short81302-2
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81302-2&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
56. Observation.component:inner-start-end.value[x]
ShortImprecise variant inner-bounding range
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
58. Observation.component:outer-start-end
Slice Nameouter-start-end
Definition

The genomic coordinates of the widest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.

ShortOuter Start-End
Control0..1
60. Observation.component:outer-start-end.code
Short81301-4
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81301-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
62. Observation.component:outer-start-end.value[x]
ShortImprecise variant outer-bounding range
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
64. Observation.component:coordinate-system
Slice Namecoordinate-system
Definition

These are different ways of identifying nucleotides or amino acids within a sequence. In the 1-based system, the first unit of the polymer (e.g. the first nucleotide) is counted as number 1. In the 0-based system, the number 0 designates the location before the first nucleotide. Different databases and file types may use different systems.

ShortCoordinate System
Control0..1
66. Observation.component:coordinate-system.code
Short92822-6
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;92822-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
68. Observation.component:coordinate-system.value[x]
Short0-based interval counting | 0-based character counting | 1-based character counting
Control1..?
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL5323-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
70. Observation.component:ref-allele
Slice Nameref-allele
Definition

Reference values ('normal') examined within the Reference Sequence.

ShortGenomic Ref Allele
Control0..1
72. Observation.component:ref-allele.code
Short69547-8
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69547-8&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
74. Observation.component:ref-allele.value[x]
ShortNormalized string per the VCF format.
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
76. Observation.component:alt-allele
Slice Namealt-allele
Definition

The genomic alternate allele is the contiguous segment of DNA in the test sample that differs from the reference allele at the same location and thus defines a variant.

ShortGenomic Alt Allele
Control0..1
78. Observation.component:alt-allele.code
Short69551-0
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69551-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
80. Observation.component:alt-allele.value[x]
ShortNormalized string per the VCF format.
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
82. Observation.component:coding-change-type
Slice Namecoding-change-type
Definition

Type of DNA change observed. Convenience property for variants with exact breakpoints, required otherwise.

ShortCoding DNA Change Type
Control0..1
84. Observation.component:coding-change-type.code
Short48019-4
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48019-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
86. Observation.component:coding-change-type.value[x]
Shortdeletion | insertion | delins | SNV | copy_number_gain | copy_number_loss | ... (many)
Control1..?
BindingUnless not suitable, these codes SHALL be taken from DNA Change Type

Concepts in sequence ontology under SO:0002072

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
88. Observation.component:genomic-source-class
Slice Namegenomic-source-class
Definition

The genomic class of the specimen being analyzed: Germline for inherited genome, somatic for cancer genome, and prenatal for fetal genome.

ShortGenomic Source Class
Control0..1
90. Observation.component:genomic-source-class.code
Short48002-0
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48002-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
92. Observation.component:genomic-source-class.value[x]
ShortGermline | Somatic | Fetal | Likely germline | Likely somatic | Likely fetal | Unknown genomic origin | De novo
Control1..?
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL378-1
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
94. Observation.component:sample-allelic-frequency
Slice Namesample-allelic-frequency
Definition

The relative frequency of the allele at a given locus in the sample.

ShortSample Allelic Frequency
Control0..1
96. Observation.component:sample-allelic-frequency.code
Short81258-6
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81258-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
98. Observation.component:sample-allelic-frequency.value[x]
ShortRelative frequency in the sample
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]
100. Observation.component:sample-allelic-frequency.value[x].system
Pattern Valuehttp://unitsofmeasure.org
102. Observation.component:allelic-read-depth
Slice Nameallelic-read-depth
Definition

Specifies the number of reads that identified the allele in question whether it consists of one or a small sequence of contiguous nucleotides. Different methods and purposes require different numbers of reads to be acceptable. Often >400, sometimes as few as 2-4.

ShortAllelic Read Depth
Control0..1
104. Observation.component:allelic-read-depth.code
Short82121-5
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82121-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
106. Observation.component:allelic-read-depth.value[x]
ShortUnfiltered count of supporting reads
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]
108. Observation.component:allelic-state
Slice Nameallelic-state
Definition

The observed level of occurrence of the variant in the set of chromosomes.

ShortAllelic State
Control0..1
110. Observation.component:allelic-state.code
Short53034-5
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;53034-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
112. Observation.component:allelic-state.value[x]
ShortHeteroplasmic | Homoplasmic | Homozygous | Heterozygous | Hemizygous
Control1..?
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL381-5
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
114. Observation.component:variant-inheritance
Slice Namevariant-inheritance
Definition

The source or inheritance of a specific germline variation found in an individual patient.

ShortOrigin of germline genetic variant
Control0..1
116. Observation.component:variant-inheritance.code
Short94186-4
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;94186-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
118. Observation.component:variant-inheritance.value[x]
ShortMaternal | Paternal | Unknown
Control1..?
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL5489-1
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
120. Observation.component:variant-inheritance-basis
Slice Namevariant-inheritance-basis
Definition

The method by which the variant inheritance is determined.

ShortEvidential basis for variant inheritance
Control0..1
122. Observation.component:variant-inheritance-basis.code
ShortBasis for allelic phase
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82309-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
124. Observation.component:variant-inheritance-basis.value[x]
ShortDirectly measured | Family DNA | Family history | Inferred from population data
Control1..?
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL4050-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
126. Observation.component:variation-code
Slice Namevariation-code
Definition

Accession number in a variant database such as ClinVar, given for cross-reference.

ShortVariation Code
Control0..*
128. Observation.component:variation-code.code
Short81252-9
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81252-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
130. Observation.component:variation-code.value[x]
ShortClinVar ID or similar
Control1..?
Binding

Multiple bindings acceptable

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
132. Observation.component:chromosome-identifier
Slice Namechromosome-identifier
Definition

An indicator, enumerated in humans by numbers 1-22, X, and Y, representing the chromosome on which the variant is located.

ShortChromosome Identifier
Control0..*
134. Observation.component:chromosome-identifier.code
Short48000-4
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48000-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
136. Observation.component:chromosome-identifier.value[x]
ShortChromosome 1 | Chromosome 2 | ... | Chromosome 22 | Chromosome X | Chromosome Y
Control1..?
BindingThe codes SHALL be taken from LOINC Answer List LL2938-0
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
138. Observation.component:representative-protein-hgvs
Slice Namerepresentative-protein-hgvs
Definition

Description of the protein (amino acid) sequence change using a valid HGVS-formatted string. The description of the variant is surrounded in parentheses if it is calculated rather than directly observed.

ShortProtein (Amino Acid) Change - pHGVS
Control0..1
140. Observation.component:representative-protein-hgvs.code
Short48005-3
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48005-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
142. Observation.component:representative-protein-hgvs.value[x]
ShortA valid HGVS-formatted 'p.' string, e.g. NP_000050.2:p.(Asn1836Lys)
Control1..?
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
144. Observation.component:copy-number
Slice Namecopy-number
Definition

The copy number of the large variant. In HGVS, this is the numeric value following the “X”. It is a unit-less value. If the value determined by the assay is not a whole number, a range or decimal number can be specified. Note that a copy number of 1 can imply a deletion.

ShortGenomic Structural Variant Copy Number
Comments

Copy number variants are often described with a single copy number value. However, due to the nature of assays, such as qPCR and microarray, it can be difficult to assign an exact copy number. Therefore, labs sometimes report a range instead of an exact copy number. They may alternatively choose to report decimal numbers, even if whole numbers are biologically correct.

In general, it can be difficult to estimate a copy number from measurements taken on a heterogenous population of cells, such as a tumor. As indicated in the ISCN 2020 specifications, it is appropriate to express the measurements using a range. Furthermore, regardless of cell population, many assays use fluorescent probes to detect copy number. These testing methodologies do not always provide an exact, discrete value for this data point.

Control0..1
Requirements

There SHALL be a code with a value of '1' if there is a value. If system is present, it SHALL be UCUM.

146. Observation.component:copy-number.code
Short82155-3
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82155-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
148. Observation.component:copy-number.value[x]
TypeChoice of: Quantity, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
150. Observation.component:variant-confidence-status
Slice Namevariant-confidence-status
Definition

A code that represents the confidence of a true positive variant call.

ShortVariant Confidence Status
Control0..1
152. Observation.component:variant-confidence-status.code
Shortvariant-confidence-status
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;variant-confidence-status&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
154. Observation.component:variant-confidence-status.value[x]
ShortHigh | Intermediate | Low
Control1..?
BindingThe codes SHALL be taken from Variant Confidence Status
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
156. Observation.component:repeat-motif
Slice Namerepeat-motif
Definition

Nucleotides of a repeat expansion motif.

ShortRepeat Motif
Control0..*
158. Observation.component:repeat-motif.extension:repeat-motif-order
Slice Namerepeat-motif-order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Requirements

The value must be a natural number starting from 1 and increasing sequentially

160. Observation.component:repeat-motif.code
Shortrepeat-motif
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-motif&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
162. Observation.component:repeat-motif.value[x]
ShortCAG
Control1..?
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
164. Observation.component:repeat-number
Slice Namerepeat-number
Definition

Number of repeats of a repeat expansion.

ShortRepeat Number
Control0..*
166. Observation.component:repeat-number.extension:repeat-motif-order
Slice Namerepeat-motif-order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Requirements

The value must be a natural number starting from 1 and increasing sequentially

168. Observation.component:repeat-number.code
Shortrepeat-number
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-number&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
170. Observation.component:repeat-number.value[x]
Short40
Control1..?
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]

Guidance on how to interpret the contents of this table can be found here

0. Observation
Definition

Measurements and simple assertions made about a patient, device or other subject.

ShortVariantMeasurements and simple assertions
Comments

Used for simple observations such as device measurements, laboratory atomic results, vital signs, height, weight, smoking status, comments, etc. Other resources are used to provide context for observations such as laboratory reports, etc.

Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesVital Signs, Measurement, Results, Tests
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present (dataAbsentReason.empty() or value.empty())
obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present (value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty())
obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present (dataAbsentReason.empty() or value.empty())
obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present (value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty())
2. Observation.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
4. Observation.extension:secondary-finding
Slice Namesecondary-finding
Definition

Secondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when Whole Exome Sequencing (WES) or Whole Genome Sequencing (WGS) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement.

For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings.

ShortSecondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when [Whole Exome Sequencing (WES)](https://en.wikipedia.org/wiki/Exome_sequencing) or [Whole Genome Sequencing (WGS)](https://en.wikipedia.org/wiki/Whole_genome_sequencing) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement. For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Secondary Finding) (Extension Type: CodeableConcept)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
6. Observation.extension:body-structure
Slice Namebody-structure
Definition

Record details about the anatomical location of a specimen or body part. This resource may be used when a coded concept does not provide the necessary detail needed for the use case.

ShortTarget anatomic location or structure
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Body Site) (Extension Type: Reference(BodyStructure))
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
8. Observation.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summaryfalse
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
10. Observation.status
Definition

The status of the result value.

Shortregistered | preliminary | final | amended +
Comments

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Control1..1
BindingThe codes SHALL be taken from ObservationStatushttp://hl7.org/fhir/ValueSet/observation-status|4.0.1

Codes providing the status of an observation.

Typecode
Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to track the status of individual results. Some results are finalized before the whole report is finalized.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Observation.category
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control20..*
BindingThe codes SHOULD be taken from ObservationCategoryCodeshttp://hl7.org/fhir/ValueSet/observation-category

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.category. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ coding
14. Observation.category:labCategory
Slice NamelabCategory
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control10..1*
BindingThe codes SHOULD be taken from ObservationCategoryCodeshttp://hl7.org/fhir/ValueSet/observation-category

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
16. Observation.category:labCategory.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control10..1*
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Pattern Value&lt;valueCoding&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://terminology.hl7.org/CodeSystem/observation-category&quot;/&gt;<br/>&nbsp;&nbsp;&lt;code&nbsp;value=&quot;laboratory&quot;/&gt;<br/>&lt;/valueCoding&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. Observation.category:geCategory
Slice NamegeCategory
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control10..1*
BindingThe codes SHOULD be taken from ObservationCategoryCodeshttp://hl7.org/fhir/ValueSet/observation-category

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
20. Observation.category:geCategory.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control10..1*
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Pattern Value&lt;valueCoding&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://terminology.hl7.org/CodeSystem/v2-0074&quot;/&gt;<br/>&nbsp;&nbsp;&lt;code&nbsp;value=&quot;GE&quot;/&gt;<br/>&lt;/valueCoding&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Observation.code
Definition

Describes what was observed. Sometimes this is called the observation "name".

Short69548-6Type of observation (code / type)
Comments

All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Alternate NamesName
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69548-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. Observation.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual result
Comments

An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
This element is affected by the following invariants: obs-7
TypeChoice of: Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.value[x]. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
26. Observation.value[x]:valueCodeableConcept
Slice NamevalueCodeableConcept
Definition

The presence or absence of the variant described in the components. If not searching for specific variations and merely reporting what's found, the profile's value should be set to 'Present'.


The information determined as a result of making the observation, if the information has a simple value.

ShortIndeterminate | No call | Present | Absent.Actual result
Comments

An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
This element is affected by the following invariants: obs-7
BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL1971-2
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Observation.method
Definition

Indicates the mechanism used to perform the observation.

ShortSequencing | SNP array | PCR | Computational analysis | ...How it was done
Comments

Only used if not implicit in code for Observation.code.

Control0..1
BindingUnless not suitable, these codes SHALL be taken from For example codes, see LOINC Answer List LL4048-6http://hl7.org/fhir/ValueSet/observation-methods
TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

In some cases, method can impact results and is thus used for determining whether results can be compared or determining significance of results.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. Observation.derivedFrom
Definition

The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

ShortRelated measurements the observation is made from
Comments

All the reference choices that are listed in this element can represent clinical observations and other measurements that may be the source for a derived value. The most common reference will be another Observation. For a discussion on the ways Observations can assembled in groups together, see Notes below.

Control0..*
TypeReference(DocumentReference, ImagingStudy, Media, QuestionnaireResponse, Observation, MolecularSequence)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.derivedFrom. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • profile @ resolve()
32. Observation.component
Definition

Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.component. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • pattern @ code
34. Observation.component.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
36. Observation.component.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

ShortType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
38. Observation.component:conclusion-string
Slice Nameconclusion-string
Definition

Concise and clinically contextualized summary conclusion (interpretation/impression) of the observation


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortClinical ConclusionComponent results
Comments

An example would be the interpretative information, typically canned, about a variant identified in the patient.


For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Need to be able to provide a conclusion that is not lost among the basic result data.


Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. Observation.component:conclusion-string.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
42. Observation.component:conclusion-string.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortconclusion-stringType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;conclusion-string&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Observation.component:gene-studied
Slice Namegene-studied
Definition

The gene(s) on which the variant is located.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGene StudiedComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
46. Observation.component:gene-studied.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
48. Observation.component:gene-studied.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48018-6Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48018-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
50. Observation.component:gene-studied.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortThe HGNC gene symbol is to be used as display text and the HGNC gene ID used as the code. If no HGNC code issued for this gene yet, NCBI gene IDs SHALL be used.Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see HUGO Gene Nomenclature Committee Gene Names (HGNC)
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
52. Observation.component:cytogenetic-location
Slice Namecytogenetic-location
Definition

The relevant chromosomal region. The combination of numbers and letters provide a genetic 'address'.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortCytogenetic (Chromosome) LocationComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. Observation.component:cytogenetic-location.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
56. Observation.component:cytogenetic-location.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48001-2Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48001-2&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
58. Observation.component:cytogenetic-location.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortExample: 1q21.1Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
60. Observation.component:reference-sequence-assembly
Slice Namereference-sequence-assembly
Definition

The reference genome/assembly used in this analysis.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortHuman Reference Sequence AssemblyComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
62. Observation.component:reference-sequence-assembly.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
64. Observation.component:reference-sequence-assembly.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short62374-4Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;62374-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Observation.component:reference-sequence-assembly.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortGRCh37 | GRCh38 | ...Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL1040-6
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
68. Observation.component:representative-coding-hgvs
Slice Namerepresentative-coding-hgvs
Definition

Human Genome Variation Society (HGVS) nomenclature for a single DNA marker. The use of the nomenclature must be extended to describe non-variations (aka. wild types) see samples for wild type examples.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortDNA change (c.HGVS)Component results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
70. Observation.component:representative-coding-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
72. Observation.component:representative-coding-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48004-6Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48004-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
74. Observation.component:representative-coding-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'c.' string, e.g. NM_005228.5:c.2369C>T.Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingThe codes SHALL be taken from For codes, see Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
76. Observation.component:genomic-hgvs
Slice Namegenomic-hgvs
Definition

Description of the genomic (gDNA) sequence change using a valid HGVS-formatted string.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic (gDNA) Change - gHGVSComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
78. Observation.component:genomic-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
80. Observation.component:genomic-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81290-9Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81290-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
82. Observation.component:genomic-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'g.' string, e.g. NC_000016.9:g.2124200_2138612dupActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingThe codes SHALL be taken from For codes, see Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
84. Observation.component:cytogenomic-nomenclature
Slice Namecytogenomic-nomenclature
Definition

Fully describes a variant with a single code. Typically a large variant such as a mosaic, abnormal chromosome numbers, etc.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortCytogenomic Nomenclature (ISCN)Component results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
86. Observation.component:cytogenomic-nomenclature.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
88. Observation.component:cytogenomic-nomenclature.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81291-7Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81291-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
90. Observation.component:cytogenomic-nomenclature.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Binding

Binding not yet defined

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
92. Observation.component:genomic-ref-seq
Slice Namegenomic-ref-seq
Definition

ID of the genomic reference sequence, which includes transcribed and non transcribed stretches


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic Reference SequenceComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
94. Observation.component:genomic-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
96. Observation.component:genomic-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48013-7Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48013-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
98. Observation.component:genomic-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned genomic reference sequence identifierActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
100. Observation.component:representative-protein-ref-seq
Slice Namerepresentative-protein-ref-seq
Definition

ID of the protein reference sequence, which includes transcribed and non transcribed stretches. It covers the entire protein described.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortProtein Reference SequenceComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
102. Observation.component:representative-protein-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
104. Observation.component:representative-protein-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortprotein-ref-seqType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;protein-ref-seq&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
106. Observation.component:representative-protein-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned protein reference sequence identifierActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
108. Observation.component:representative-transcript-ref-seq
Slice Namerepresentative-transcript-ref-seq
Definition

NCBI's RefSeq ('NM_...'), Ensembl ('ENST...'), and LRG ('LRG...' plus 't1' to indicate transcript)


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortReference TranscriptComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
110. Observation.component:representative-transcript-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
112. Observation.component:representative-transcript-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short51958-7Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;51958-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
114. Observation.component:representative-transcript-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned transcript reference sequence identifierActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
116. Observation.component:exact-start-end
Slice Nameexact-start-end
Definition

The exact integer-based genomic coordinates of the start and end of the variant region.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortExact Start-EndComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
118. Observation.component:exact-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
120. Observation.component:exact-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81254-5Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81254-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
122. Observation.component:exact-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortRange in question. 'High' can be omitted for single nucleotide variants.Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
124. Observation.component:inner-start-end
Slice Nameinner-start-end
Definition

The genomic coordinates of the narrowest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortInner Start-EndComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
126. Observation.component:inner-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
128. Observation.component:inner-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81302-2Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81302-2&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
130. Observation.component:inner-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortImprecise variant inner-bounding rangeActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
132. Observation.component:outer-start-end
Slice Nameouter-start-end
Definition

The genomic coordinates of the widest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortOuter Start-EndComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
134. Observation.component:outer-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
136. Observation.component:outer-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81301-4Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81301-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
138. Observation.component:outer-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortImprecise variant outer-bounding rangeActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
140. Observation.component:coordinate-system
Slice Namecoordinate-system
Definition

These are different ways of identifying nucleotides or amino acids within a sequence. In the 1-based system, the first unit of the polymer (e.g. the first nucleotide) is counted as number 1. In the 0-based system, the number 0 designates the location before the first nucleotide. Different databases and file types may use different systems.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortCoordinate SystemComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
142. Observation.component:coordinate-system.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
144. Observation.component:coordinate-system.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short92822-6Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;92822-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
146. Observation.component:coordinate-system.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Short0-based interval counting | 0-based character counting | 1-based character countingActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL5323-2
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
148. Observation.component:ref-allele
Slice Nameref-allele
Definition

Reference values ('normal') examined within the Reference Sequence.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic Ref AlleleComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
150. Observation.component:ref-allele.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
152. Observation.component:ref-allele.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short69547-8Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69547-8&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
154. Observation.component:ref-allele.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortNormalized string per the VCF format.Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
156. Observation.component:alt-allele
Slice Namealt-allele
Definition

The genomic alternate allele is the contiguous segment of DNA in the test sample that differs from the reference allele at the same location and thus defines a variant.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic Alt AlleleComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
158. Observation.component:alt-allele.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
160. Observation.component:alt-allele.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short69551-0Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69551-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
162. Observation.component:alt-allele.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortNormalized string per the VCF format.Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
164. Observation.component:coding-change-type
Slice Namecoding-change-type
Definition

Type of DNA change observed. Convenience property for variants with exact breakpoints, required otherwise.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortCoding DNA Change TypeComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
166. Observation.component:coding-change-type.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
168. Observation.component:coding-change-type.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48019-4Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48019-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
170. Observation.component:coding-change-type.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Shortdeletion | insertion | delins | SNV | copy_number_gain | copy_number_loss | ... (many)Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see DNA Change Type

Concepts in sequence ontology under SO:0002072

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
172. Observation.component:genomic-source-class
Slice Namegenomic-source-class
Definition

The genomic class of the specimen being analyzed: Germline for inherited genome, somatic for cancer genome, and prenatal for fetal genome.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic Source ClassComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
174. Observation.component:genomic-source-class.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
176. Observation.component:genomic-source-class.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48002-0Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48002-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
178. Observation.component:genomic-source-class.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortGermline | Somatic | Fetal | Likely germline | Likely somatic | Likely fetal | Unknown genomic origin | De novoActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL378-1
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
180. Observation.component:sample-allelic-frequency
Slice Namesample-allelic-frequency
Definition

The relative frequency of the allele at a given locus in the sample.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortSample Allelic FrequencyComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
182. Observation.component:sample-allelic-frequency.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
184. Observation.component:sample-allelic-frequency.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81258-6Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81258-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
186. Observation.component:sample-allelic-frequency.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortRelative frequency in the sampleActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
188. Observation.component:sample-allelic-frequency.value[x].comparator
Definition

How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

Short< | <= | >= | > - how to understand the value
Control0..1
BindingThe codes SHALL be taken from QuantityComparatorhttp://hl7.org/fhir/ValueSet/quantity-comparator|4.0.1

How the Quantity should be understood and represented.

Typecode
Is Modifiertrue because This is labeled as &quot;Is Modifier&quot; because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

Meaning if MissingIf there is no comparator, then there is no modification of the value
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
190. Observation.component:sample-allelic-frequency.value[x].system
Definition

The identification of the system that provides the coded form of the unit.

ShortSystem that defines coded unit form
Control0..1
This element is affected by the following invariants: qty-3
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to know the system that defines the coded form of the unit.

Pattern Valuehttp://unitsofmeasure.org
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
192. Observation.component:allelic-read-depth
Slice Nameallelic-read-depth
Definition

Specifies the number of reads that identified the allele in question whether it consists of one or a small sequence of contiguous nucleotides. Different methods and purposes require different numbers of reads to be acceptable. Often >400, sometimes as few as 2-4.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortAllelic Read DepthComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
194. Observation.component:allelic-read-depth.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
196. Observation.component:allelic-read-depth.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short82121-5Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82121-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
198. Observation.component:allelic-read-depth.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortUnfiltered count of supporting readsActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
200. Observation.component:allelic-state
Slice Nameallelic-state
Definition

The observed level of occurrence of the variant in the set of chromosomes.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortAllelic StateComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
202. Observation.component:allelic-state.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
204. Observation.component:allelic-state.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short53034-5Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;53034-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
206. Observation.component:allelic-state.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortHeteroplasmic | Homoplasmic | Homozygous | Heterozygous | HemizygousActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL381-5
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
208. Observation.component:variant-inheritance
Slice Namevariant-inheritance
Definition

The source or inheritance of a specific germline variation found in an individual patient.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortOrigin of germline genetic variantComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
210. Observation.component:variant-inheritance.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
212. Observation.component:variant-inheritance.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short94186-4Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;94186-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
214. Observation.component:variant-inheritance.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortMaternal | Paternal | UnknownActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL5489-1
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
216. Observation.component:variant-inheritance-basis
Slice Namevariant-inheritance-basis
Definition

The method by which the variant inheritance is determined.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortEvidential basis for variant inheritanceComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
218. Observation.component:variant-inheritance-basis.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
220. Observation.component:variant-inheritance-basis.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

ShortBasis for allelic phaseType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82309-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
222. Observation.component:variant-inheritance-basis.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortDirectly measured | Family DNA | Family history | Inferred from population dataActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingUnless not suitable, these codes SHALL be taken from For codes, see LOINC Answer List LL4050-2
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
224. Observation.component:variation-code
Slice Namevariation-code
Definition

Accession number in a variant database such as ClinVar, given for cross-reference.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortVariation CodeComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
226. Observation.component:variation-code.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
228. Observation.component:variation-code.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81252-9Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81252-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
230. Observation.component:variation-code.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortClinVar ID or similarActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Binding

Multiple bindings acceptable

TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
232. Observation.component:chromosome-identifier
Slice Namechromosome-identifier
Definition

An indicator, enumerated in humans by numbers 1-22, X, and Y, representing the chromosome on which the variant is located.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortChromosome IdentifierComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
234. Observation.component:chromosome-identifier.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
236. Observation.component:chromosome-identifier.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48000-4Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48000-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
238. Observation.component:chromosome-identifier.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortChromosome 1 | Chromosome 2 | ... | Chromosome 22 | Chromosome X | Chromosome YActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingThe codes SHALL be taken from For codes, see LOINC Answer List LL2938-0
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
240. Observation.component:representative-protein-hgvs
Slice Namerepresentative-protein-hgvs
Definition

Description of the protein (amino acid) sequence change using a valid HGVS-formatted string. The description of the variant is surrounded in parentheses if it is calculated rather than directly observed.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortProtein (Amino Acid) Change - pHGVSComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
242. Observation.component:representative-protein-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
244. Observation.component:representative-protein-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48005-3Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48005-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
246. Observation.component:representative-protein-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'p.' string, e.g. NP_000050.2:p.(Asn1836Lys)Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingThe codes SHALL be taken from For codes, see Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
248. Observation.component:copy-number
Slice Namecopy-number
Definition

The copy number of the large variant. In HGVS, this is the numeric value following the “X”. It is a unit-less value. If the value determined by the assay is not a whole number, a range or decimal number can be specified. Note that a copy number of 1 can imply a deletion.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortGenomic Structural Variant Copy NumberComponent results
Comments

Copy number variants are often described with a single copy number value. However, due to the nature of assays, such as qPCR and microarray, it can be difficult to assign an exact copy number. Therefore, labs sometimes report a range instead of an exact copy number. They may alternatively choose to report decimal numbers, even if whole numbers are biologically correct.

In general, it can be difficult to estimate a copy number from measurements taken on a heterogenous population of cells, such as a tumor. As indicated in the ISCN 2020 specifications, it is appropriate to express the measurements using a range. Furthermore, regardless of cell population, many assays use fluorescent probes to detect copy number. These testing methodologies do not always provide an exact, discrete value for this data point.


For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

There SHALL be a code with a value of '1' if there is a value. If system is present, it SHALL be UCUM.


Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
250. Observation.component:copy-number.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
252. Observation.component:copy-number.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short82155-3Type of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82155-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
254. Observation.component:copy-number.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeChoice of: Quantity, Range, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
256. Observation.component:variant-confidence-status
Slice Namevariant-confidence-status
Definition

A code that represents the confidence of a true positive variant call.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortVariant Confidence StatusComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
258. Observation.component:variant-confidence-status.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
260. Observation.component:variant-confidence-status.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortvariant-confidence-statusType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;variant-confidence-status&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
262. Observation.component:variant-confidence-status.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortHigh | Intermediate | LowActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
BindingThe codes SHALL be taken from For codes, see Variant Confidence Status
TypeCodeableConcept, dateTime, boolean, string, SampledData, Quantity, Period, Ratio, integer, time, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
264. Observation.component:repeat-motif
Slice Namerepeat-motif
Definition

Nucleotides of a repeat expansion motif.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortRepeat MotifComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
266. Observation.component:repeat-motif.extension:repeat-motif-order
Slice Namerepeat-motif-order
Definition

Use to group and order repeat expansion motifs.

ShortRepeat Motif Order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Is Modifierfalse
Requirements

The value must be a natural number starting from 1 and increasing sequentially

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
268. Observation.component:repeat-motif.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
270. Observation.component:repeat-motif.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortrepeat-motifType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-motif&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
272. Observation.component:repeat-motif.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortCAGActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
Typestring, dateTime, boolean, SampledData, Quantity, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
274. Observation.component:repeat-number
Slice Namerepeat-number
Definition

Number of repeats of a repeat expansion.


Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortRepeat NumberComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
276. Observation.component:repeat-number.extension:repeat-motif-order
Slice Namerepeat-motif-order
Definition

Use to group and order repeat expansion motifs.

ShortRepeat Motif Order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Is Modifierfalse
Requirements

The value must be a natural number starting from 1 and increasing sequentially

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
278. Observation.component:repeat-number.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
280. Observation.component:repeat-number.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortrepeat-numberType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodeshttp://hl7.org/fhir/ValueSet/observation-codes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-number&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
282. Observation.component:repeat-number.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Short40Actual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control10..1
TypeQuantity, dateTime, boolean, string, SampledData, Period, Ratio, integer, time, Range, CodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))

Guidance on how to interpret the contents of this table can be found here

0. Observation
Definition

Measurements and simple assertions made about a patient, device or other subject.

ShortVariant
Comments

Used for simple observations such as device measurements, laboratory atomic results, vital signs, height, weight, smoking status, comments, etc. Other resources are used to provide context for observations such as laboratory reports, etc.

Control0..*
Is Modifierfalse
Summaryfalse
Alternate NamesVital Signs, Measurement, Results, Tests
Invariantsdom-2: If the resource is contained in another resource, it SHALL NOT contain nested Resources (contained.contained.empty())
dom-3: If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource (contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty())
dom-4: If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated (contained.meta.versionId.empty() and contained.meta.lastUpdated.empty())
dom-5: If a resource is contained in another resource, it SHALL NOT have a security label (contained.meta.security.empty())
dom-6: A resource should have narrative for robust management (text.`div`.exists())
obs-6: dataAbsentReason SHALL only be present if Observation.value[x] is not present (dataAbsentReason.empty() or value.empty())
obs-7: If Observation.code is the same as an Observation.component.code then the value element associated with the code SHALL NOT be present (value.empty() or component.code.where(coding.intersect(%resource.code.coding).exists()).empty())
2. Observation.id
Definition

The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.

ShortLogical id of this artifact
Comments

The only time that a resource does not have an id is when it is being submitted to the server using a create operation.

Control0..1
Typeid
Is Modifierfalse
Summarytrue
4. Observation.meta
Definition

The metadata about the resource. This is content that is maintained by the infrastructure. Changes to the content might not always be associated with version changes to the resource.

ShortMetadata about the resource
Control0..1
TypeMeta
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
6. Observation.implicitRules
Definition

A reference to a set of rules that were followed when the resource was constructed, and which must be understood when processing the content. Often, this is a reference to an implementation guide that defines the special rules along with other profiles etc.

ShortA set of rules under which this content was created
Comments

Asserting this rule set restricts the content to be only understood by a limited set of trading partners. This inherently limits the usefulness of the data in the long term. However, the existing health eco-system is highly fractured, and not yet ready to define, collect, and exchange data in a generally computable sense. Wherever possible, implementers and/or specification writers should avoid using this element. Often, when used, the URL is a reference to an implementation guide that defines these special rules as part of it's narrative along with other profiles, value sets, etc.

Control0..1
Typeuri
Is Modifiertrue because This element is labeled as a modifier because the implicit rules may provide additional knowledge about the resource that modifies it's meaning or interpretation
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
8. Observation.language
Definition

The base language in which the resource is written.

ShortLanguage of the resource content
Comments

Language is provided to support indexing and accessibility (typically, services such as text to speech use the language tag). The html language tag in the narrative applies to the narrative. The language tag on the resource may be used to specify the language of other presentations generated from the data in the resource. Not all the content has to be in the base language. The Resource.language should not be assumed to apply to the narrative automatically. If a language is specified, it should it also be specified on the div element in the html (see rules in HTML5 for information about the relationship between xml:lang and the html lang attribute).

Control0..1
BindingThe codes SHOULD be taken from CommonLanguages

A human language.

Additional BindingsPurpose
AllLanguagesMax Binding
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
10. Observation.text
Definition

A human-readable narrative that contains a summary of the resource and can be used to represent the content of the resource to a human. The narrative need not encode all the structured data, but is required to contain sufficient detail to make it "clinically safe" for a human to just read the narrative. Resource definitions may define what content should be represented in the narrative to ensure clinical safety.

ShortText summary of the resource, for human interpretation
Comments

Contained resources do not have narrative. Resources that are not contained SHOULD have a narrative. In some cases, a resource may only have text with little or no additional discrete data (as long as all minOccurs=1 elements are satisfied). This may be necessary for data from legacy systems where information is captured as a "text blob" or where text is additionally entered raw or narrated and encoded information is added later.

Control0..1
TypeNarrative
Is Modifierfalse
Summaryfalse
Alternate Namesnarrative, html, xhtml, display
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
12. Observation.contained
Definition

These resources do not have an independent existence apart from the resource that contains them - they cannot be identified independently, and nor can they have their own independent transaction scope.

ShortContained, inline Resources
Comments

This should never be done when the content can be identified properly, as once identification is lost, it is extremely difficult (and context dependent) to restore it again. Contained resources may have profiles and tags In their meta elements, but SHALL NOT have security labels.

Control0..*
TypeResource
Is Modifierfalse
Summaryfalse
Alternate Namesinline resources, anonymous resources, contained resources
14. Observation.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • pattern @ url
16. Observation.extension:secondary-finding
Slice Namesecondary-finding
Definition

Secondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when Whole Exome Sequencing (WES) or Whole Genome Sequencing (WGS) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement.

For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings.

ShortSecondary findings are genetic test results that provide information about variants in a gene unrelated to the primary purpose for the testing, most often discovered when [Whole Exome Sequencing (WES)](https://en.wikipedia.org/wiki/Exome_sequencing) or [Whole Genome Sequencing (WGS)](https://en.wikipedia.org/wiki/Whole_genome_sequencing) is performed. This extension should be used to denote when a genetic finding is being shared as a secondary finding, and ideally refer to a corresponding guideline or policy statement. For more detail, please see: https://ghr.nlm.nih.gov/primer/testing/secondaryfindings
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Secondary Finding) (Extension Type: CodeableConcept)
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
18. Observation.extension:body-structure
Slice Namebody-structure
Definition

Record details about the anatomical location of a specimen or body part. This resource may be used when a coded concept does not provide the necessary detail needed for the use case.

ShortTarget anatomic location or structure
Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Body Site) (Extension Type: Reference(BodyStructure))
Is Modifierfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
20. Observation.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the resource and that modifies the understanding of the element that contains it and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer is allowed to define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the resource that contains them
Summaryfalse
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
22. Observation.identifier
Definition

A unique identifier assigned to this observation.

ShortBusiness Identifier for observation
NoteThis is a business identifier, not a resource identifier (see discussion)
Control0..*
TypeIdentifier
Is Modifierfalse
Summarytrue
Requirements

Allows observations to be distinguished and referenced.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
24. Observation.basedOn
Definition

A plan, proposal or order that is fulfilled in whole or in part by this event. For example, a MedicationRequest may require a patient to have laboratory test performed before it is dispensed.

ShortFulfills plan, proposal or order
Control0..*
TypeReference(CarePlan, DeviceRequest, ImmunizationRecommendation, MedicationRequest, NutritionOrder, ServiceRequest)
Is Modifierfalse
Summarytrue
Requirements

Allows tracing of authorization for the event and tracking whether proposals/recommendations were acted upon.

Alternate NamesFulfills
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
26. Observation.partOf
Definition

A larger event of which this particular Observation is a component or step. For example, an observation as part of a procedure.

ShortPart of referenced event
Comments

To link an Observation to an Encounter use encounter. See the Notes below for guidance on referencing another Observation.

Control0..*
TypeReference(MedicationAdministration, MedicationDispense, MedicationStatement, Procedure, Immunization, ImagingStudy, Genomic Study)
Is Modifierfalse
Summarytrue
Alternate NamesContainer
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
28. Observation.status
Definition

The status of the result value.

Shortregistered | preliminary | final | amended +
Comments

This element is labeled as a modifier because the status contains codes that mark the resource as not currently valid.

Control1..1
BindingThe codes SHALL be taken from ObservationStatus

Codes providing the status of an observation.

Typecode
Is Modifiertrue because This element is labeled as a modifier because it is a status element that contains status entered-in-error which means that the resource should not be treated as valid
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to track the status of individual results. Some results are finalized before the whole report is finalized.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
30. Observation.category
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control2..*
BindingThe codes SHOULD be taken from ObservationCategoryCodes

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.category. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ coding
32. Observation.category:labCategory
Slice NamelabCategory
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control1..1
BindingThe codes SHOULD be taken from ObservationCategoryCodes

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
34. Observation.category:labCategory.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
36. Observation.category:labCategory.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.category.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
38. Observation.category:labCategory.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control1..1
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Pattern Value&lt;valueCoding&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://terminology.hl7.org/CodeSystem/observation-category&quot;/&gt;<br/>&nbsp;&nbsp;&lt;code&nbsp;value=&quot;laboratory&quot;/&gt;<br/>&lt;/valueCoding&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
40. Observation.category:labCategory.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
42. Observation.category:geCategory
Slice NamegeCategory
Definition

A code that classifies the general type of observation being made.

ShortClassification of type of observation
Comments

In addition to the required category valueset, this element allows various categorization schemes based on the owner’s definition of the category and effectively multiple categories can be used at once. The level of granularity is defined by the category concepts in the value set.

Control1..1
BindingThe codes SHOULD be taken from ObservationCategoryCodes

Codes for high level observation categories.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Used for filtering what observations are retrieved and displayed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
44. Observation.category:geCategory.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
46. Observation.category:geCategory.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.category.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
48. Observation.category:geCategory.coding
Definition

A reference to a code defined by a terminology system.

ShortCode defined by a terminology system
Comments

Codes may be defined very casually in enumerations, or code lists, up to very formal definitions such as SNOMED CT - see the HL7 v3 Core Principles for more information. Ordering of codings is undefined and SHALL NOT be used to infer meaning. Generally, at most only one of the coding values will be labeled as UserSelected = true.

Control1..1
TypeCoding
Is Modifierfalse
Summarytrue
Requirements

Allows for alternative encodings within a code system, and translations to other code systems.

Pattern Value&lt;valueCoding&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://terminology.hl7.org/CodeSystem/v2-0074&quot;/&gt;<br/>&nbsp;&nbsp;&lt;code&nbsp;value=&quot;GE&quot;/&gt;<br/>&lt;/valueCoding&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
50. Observation.category:geCategory.text
Definition

A human language representation of the concept as seen/selected/uttered by the user who entered the data and/or which represents the intended meaning of the user.

ShortPlain text representation of the concept
Comments

Very often the text is the same as a displayName of one of the codings.

Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

The codes from the terminologies do not always capture the correct meaning with all the nuances of the human using them, or sometimes there is no appropriate code at all. In these cases, the text is used to capture the full meaning of the source.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
52. Observation.code
Definition

Describes what was observed. Sometimes this is called the observation "name".

Short69548-6
Comments

All code-value and, if present, component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Alternate NamesName
Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69548-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
54. Observation.subject
Definition

The patient, or group of patients, location, or device this observation is about and into whose record the observation is placed. If the actual focus of the observation is different from the subject (or a sample of, part, or region of the subject), the focus element or the code itself specifies the actual focus of the observation.

ShortWho and/or what the observation is about
Comments

One would expect this element to be a cardinality of 1..1. The only circumstance in which the subject can be missing is when the observation is made by a device that does not know the patient. In this case, the observation SHALL be matched to a patient through some context/channel matching technique, and at this point, the observation should be updated.

Control0..1
TypeReference(Patient, Group, Device, Location)
Is Modifierfalse
Summarytrue
Requirements

Observations have no value if you don't know who or what they're about.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
56. Observation.focus
Definition

The actual focus of an observation when it is not the patient of record representing something or someone associated with the patient such as a spouse, parent, fetus, or donor. For example, fetus observations in a mother's record. The focus of an observation could also be an existing condition, an intervention, the subject's diet, another observation of the subject, or a body structure such as tumor or implanted device. An example use case would be using the Observation resource to capture whether the mother is trained to change her child's tracheostomy tube. In this example, the child is the patient of record and the mother is the focus.

ShortWhat the observation is about, when it is not about the subject of record
Comments

Typically, an observation is made about the subject - a patient, or group of patients, location, or device - and the distinction between the subject and what is directly measured for an observation is specified in the observation code itself ( e.g., "Blood Glucose") and does not need to be represented separately using this element. Use specimen if a reference to a specimen is required. If a code is required instead of a resource use either bodysite for bodysites or the standard extension focusCode.

Control0..*
TypeReference(Resource)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
58. Observation.encounter
Definition

The healthcare event (e.g. a patient and healthcare provider interaction) during which this observation is made.

ShortHealthcare event during which this observation is made
Comments

This will typically be the encounter the event occurred within, but some events may be initiated prior to or after the official completion of an encounter but still be tied to the context of the encounter (e.g. pre-admission laboratory tests).

Control0..1
TypeReference(Encounter)
Is Modifierfalse
Summarytrue
Requirements

For some observations it may be important to know the link between an observation and a particular encounter.

Alternate NamesContext
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
60. Observation.effective[x]
Definition

The time or time-period the observed value is asserted as being true. For biological subjects - e.g. human patients - this is usually called the "physiologically relevant time". This is usually either the time of the procedure or of specimen collection, but very often the source of the date/time is not known, only the date/time itself.

ShortClinically relevant time/time-period for observation
Comments

At least a date should be present unless this observation is a historical report. For recording imprecise or "fuzzy" times (For example, a blood glucose measurement taken "after breakfast") use the Timing datatype which allow the measurement to be tied to regular life events.

Control0..1
TypeChoice of: dateTime, Period, Timing, instant
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Knowing when an observation was deemed true is important to its relevance as well as determining trends.

Alternate NamesOccurrence
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
62. Observation.issued
Definition

The date and time this version of the observation was made available to providers, typically after the results have been reviewed and verified.

ShortDate/Time this version was made available
Comments

For Observations that don’t require review and verification, it may be the same as the lastUpdated time of the resource itself. For Observations that do require review and verification for certain updates, it might not be the same as the lastUpdated time of the resource itself due to a non-clinically significant update that doesn’t require the new version to be reviewed and verified again.

Control0..1
Typeinstant
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
64. Observation.performer
Definition

Who was responsible for asserting the observed value as "true".

ShortWho is responsible for the observation
Control0..*
TypeReference(Practitioner, PractitionerRole, Organization, CareTeam, Patient, RelatedPerson)
Is Modifierfalse
Summarytrue
Requirements

May give a degree of confidence in the observation and also indicates where follow-up questions should be directed.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
66. Observation.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual result
Comments

An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
This element is affected by the following invariants: obs-7
TypeChoice of: Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.value[x]. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • type @ $this
68. Observation.value[x]:valueCodeableConcept
Slice NamevalueCodeableConcept
Definition

The presence or absence of the variant described in the components. If not searching for specific variations and merely reporting what's found, the profile's value should be set to 'Present'.

ShortIndeterminate | No call | Present | Absent.
Comments

An observation may have; 1) a single value here, 2) both a value and a set of related or component values, or 3) only a set of related or component values. If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
This element is affected by the following invariants: obs-7
BindingThe codes SHALL be taken from LOINC Answer List LL1971-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
70. Observation.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.value[x] is missing.

ShortWhy the result is missing
Comments

Null or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "specimen unsatisfactory".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Note that an observation may only be reported if there are values to report. For example differential cell counts values may be reported only when > 0. Because of these options, use-case agreements are required to interpret general observations for null or exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
72. Observation.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
74. Observation.note
Definition

A text note which also contains information about who made the statement and when.

ShortComments about the Observation that also contain a coded type
Comments

May include general statements about the observation, or statements about significant, unexpected or unreliable results values, or information about its source when relevant to its interpretation. The CodedAnnotation data type, while not allowing for or intending to make the content computable, does allow the author to indicate the type of note. This does not replace the use of interpretation, value, or component values. One important note is that Annotation is a FHIR data type, this is NOT about annotations in the genomic context.

Control0..*
This element is affected by the following invariants: ele-1
TypeAnnotation(Coded Annotation)
Is Modifierfalse
Requirements

Need to be able to provide free text additional information. Notes SHALL NOT contain information which can be captured in a structured way.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
76. Observation.bodySite
Definition

Indicates the site on the subject's body where the observation was made (i.e. the target site).

ShortObserved body part
Comments

Only used if not implicit in code found in Observation.code. In many systems, this may be represented as a related observation instead of an inline component.

If the use case requires BodySite to be handled as a separate resource (e.g. to identify and track separately) then use the standard extension bodySite.

Control0..1
BindingFor example codes, see SNOMEDCTBodyStructures

Codes describing anatomical locations. May include laterality.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
78. Observation.method
Definition

Indicates the mechanism used to perform the observation.

ShortSequencing | SNP array | PCR | Computational analysis | ...
Comments

Only used if not implicit in code for Observation.code.

Control0..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL4048-6
TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

In some cases, method can impact results and is thus used for determining whether results can be compared or determining significance of results.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
80. Observation.specimen
Definition

The specimen that was used when this observation was made.

ShortSpecimen used for this observation
Comments

Should only be used if not implicit in code found in Observation.code. Observations are not made on specimens themselves; they are made on a subject, but in many cases by the means of a specimen. Note that although specimens are often involved, they are not always tracked and reported explicitly. Also note that observation resources may be used in contexts that track the specimen explicitly (e.g. Diagnostic Report).

Control0..1
TypeReference(Specimen)
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
82. Observation.device
Definition

The device used to generate the observation data.

Short(Measurement) Device
Comments

Note that this is not meant to represent a device involved in the transmission of the result, e.g., a gateway. Such devices may be documented using the Provenance resource where relevant.

Control0..1
TypeReference(Device, DeviceMetric)
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
84. Observation.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range. Multiple reference ranges are interpreted as an "OR". In other words, to represent two distinct target populations, two referenceRange elements would be used.

ShortProvides guide for interpretation
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
obs-3: Must have at least a low or a high or text (low.exists() or high.exists() or text.exists())
86. Observation.referenceRange.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
88. Observation.referenceRange.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
90. Observation.referenceRange.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
92. Observation.referenceRange.low
Definition

The value of the low bound of the reference range. The low bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the low bound is omitted, it is assumed to be meaningless (e.g. reference range is <=2.3).

ShortLow Range, if relevant
Control0..1
This element is affected by the following invariants: obs-3
TypeQuantity(SimpleQuantity)
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
94. Observation.referenceRange.high
Definition

The value of the high bound of the reference range. The high bound of the reference range endpoint is inclusive of the value (e.g. reference range is >=5 - <=9). If the high bound is omitted, it is assumed to be meaningless (e.g. reference range is >= 2.3).

ShortHigh Range, if relevant
Control0..1
This element is affected by the following invariants: obs-3
TypeQuantity(SimpleQuantity)
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
96. Observation.referenceRange.type
Definition

Codes to indicate the what part of the targeted reference population it applies to. For example, the normal or therapeutic range.

ShortReference range qualifier
Comments

This SHOULD be populated if there is more than one range. If this element is not present then the normal range is assumed.

Control0..1
BindingThe codes SHOULD be taken from ObservationReferenceRangeMeaningCodes

Code for the meaning of a reference range.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Need to be able to say what kind of reference range this is - normal, recommended, therapeutic, etc., - for proper interpretation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
98. Observation.referenceRange.appliesTo
Definition

Codes to indicate the target population this reference range applies to. For example, a reference range may be based on the normal population or a particular sex or race. Multiple appliesTo are interpreted as an "AND" of the target populations. For example, to represent a target population of African American females, both a code of female and a code for African American would be used.

ShortReference range population
Comments

This SHOULD be populated if there is more than one range. If this element is not present then the normal population is assumed.

Control0..*
BindingFor example codes, see ObservationReferenceRangeAppliesToCodes

Codes identifying the population the reference range applies to.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

Need to be able to identify the target population for proper interpretation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
100. Observation.referenceRange.age
Definition

The age at which this reference range is applicable. This is a neonatal age (e.g. number of weeks at term) if the meaning says so.

ShortApplicable age range, if relevant
Control0..1
TypeRange
Is Modifierfalse
Summaryfalse
Requirements

Some analytes vary greatly over age.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
102. Observation.referenceRange.text
Definition

Text based reference range in an observation which may be used when a quantitative range is not appropriate for an observation. An example would be a reference value of "Negative" or a list or table of "normals".

ShortText based reference range in an observation
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
104. Observation.hasMember
Definition

This observation is a group observation (e.g. a battery, a panel of tests, a set of vital sign measurements) that includes the target as a member of the group.

ShortRelated resource that belongs to the Observation group
Comments

When using this element, an observation will typically have either a value or a set of related resources, although both may be present in some cases. For a discussion on the ways Observations can assembled in groups together, see Notes below. Note that a system may calculate results from QuestionnaireResponse into a final score and represent the score as an Observation.

Control0..*
TypeReference(Observation, QuestionnaireResponse, MolecularSequence)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
106. Observation.derivedFrom
Definition

The target resource that represents a measurement from which this observation value is derived. For example, a calculated anion gap or a fetal measurement based on an ultrasound image.

ShortRelated measurements the observation is made from
Comments

All the reference choices that are listed in this element can represent clinical observations and other measurements that may be the source for a derived value. The most common reference will be another Observation. For a discussion on the ways Observations can assembled in groups together, see Notes below.

Control0..*
TypeReference(DocumentReference, ImagingStudy, Media, QuestionnaireResponse, Observation, MolecularSequence)
Is Modifierfalse
Summarytrue
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.derivedFrom. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • profile @ resolve()
108. Observation.component
Definition

Some observations have multiple component observations. These component observations are expressed as separate code value pairs that share the same attributes. Examples include systolic and diastolic component observations for blood pressure measurement and multiple component observations for genetics observations.

ShortComponent results
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
SlicingThis element introduces a set of slices on Observation.component. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • pattern @ code
110. Observation.component.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
112. Observation.component.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
114. Observation.component.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
116. Observation.component.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

ShortType of component observation (code / type)
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
118. Observation.component.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeChoice of: Quantity, CodeableConcept, string, boolean, integer, Range, Ratio, SampledData, time, dateTime, Period
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
120. Observation.component.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
122. Observation.component.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
124. Observation.component.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
126. Observation.component:conclusion-string
Slice Nameconclusion-string
Definition

Concise and clinically contextualized summary conclusion (interpretation/impression) of the observation

ShortClinical Conclusion
Comments

An example would be the interpretative information, typically canned, about a variant identified in the patient.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Need to be able to provide a conclusion that is not lost among the basic result data.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
128. Observation.component:conclusion-string.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
130. Observation.component:conclusion-string.extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
132. Observation.component:conclusion-string.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
134. Observation.component:conclusion-string.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortconclusion-string
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;conclusion-string&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
136. Observation.component:conclusion-string.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortSummary conclusion (interpretation/impression)
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
138. Observation.component:conclusion-string.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
140. Observation.component:conclusion-string.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
142. Observation.component:conclusion-string.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
144. Observation.component:gene-studied
Slice Namegene-studied
Definition

The gene(s) on which the variant is located.

ShortGene Studied
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
146. Observation.component:gene-studied.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
148. Observation.component:gene-studied.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
150. Observation.component:gene-studied.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
152. Observation.component:gene-studied.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48018-6
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48018-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
154. Observation.component:gene-studied.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortThe HGNC gene symbol is to be used as display text and the HGNC gene ID used as the code. If no HGNC code issued for this gene yet, NCBI gene IDs SHALL be used.
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from HUGO Gene Nomenclature Committee Gene Names (HGNC)
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
156. Observation.component:gene-studied.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
158. Observation.component:gene-studied.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
160. Observation.component:gene-studied.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
162. Observation.component:cytogenetic-location
Slice Namecytogenetic-location
Definition

The relevant chromosomal region. The combination of numbers and letters provide a genetic 'address'.

ShortCytogenetic (Chromosome) Location
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
164. Observation.component:cytogenetic-location.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
166. Observation.component:cytogenetic-location.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
168. Observation.component:cytogenetic-location.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
170. Observation.component:cytogenetic-location.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48001-2
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48001-2&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
172. Observation.component:cytogenetic-location.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortExample: 1q21.1
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
174. Observation.component:cytogenetic-location.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
176. Observation.component:cytogenetic-location.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
178. Observation.component:cytogenetic-location.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
180. Observation.component:reference-sequence-assembly
Slice Namereference-sequence-assembly
Definition

The reference genome/assembly used in this analysis.

ShortHuman Reference Sequence Assembly
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
182. Observation.component:reference-sequence-assembly.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
184. Observation.component:reference-sequence-assembly.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
186. Observation.component:reference-sequence-assembly.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
188. Observation.component:reference-sequence-assembly.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short62374-4
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;62374-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
190. Observation.component:reference-sequence-assembly.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortGRCh37 | GRCh38 | ...
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL1040-6
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
192. Observation.component:reference-sequence-assembly.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
194. Observation.component:reference-sequence-assembly.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
196. Observation.component:reference-sequence-assembly.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
198. Observation.component:representative-coding-hgvs
Slice Namerepresentative-coding-hgvs
Definition

Human Genome Variation Society (HGVS) nomenclature for a single DNA marker. The use of the nomenclature must be extended to describe non-variations (aka. wild types) see samples for wild type examples.

ShortDNA change (c.HGVS)
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
200. Observation.component:representative-coding-hgvs.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
202. Observation.component:representative-coding-hgvs.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
204. Observation.component:representative-coding-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
206. Observation.component:representative-coding-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48004-6
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48004-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
208. Observation.component:representative-coding-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'c.' string, e.g. NM_005228.5:c.2369C>T.
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
210. Observation.component:representative-coding-hgvs.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
212. Observation.component:representative-coding-hgvs.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
214. Observation.component:representative-coding-hgvs.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
216. Observation.component:genomic-hgvs
Slice Namegenomic-hgvs
Definition

Description of the genomic (gDNA) sequence change using a valid HGVS-formatted string.

ShortGenomic (gDNA) Change - gHGVS
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
218. Observation.component:genomic-hgvs.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
220. Observation.component:genomic-hgvs.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
222. Observation.component:genomic-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
224. Observation.component:genomic-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81290-9
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81290-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
226. Observation.component:genomic-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'g.' string, e.g. NC_000016.9:g.2124200_2138612dup
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
228. Observation.component:genomic-hgvs.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
230. Observation.component:genomic-hgvs.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
232. Observation.component:genomic-hgvs.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
234. Observation.component:cytogenomic-nomenclature
Slice Namecytogenomic-nomenclature
Definition

Fully describes a variant with a single code. Typically a large variant such as a mosaic, abnormal chromosome numbers, etc.

ShortCytogenomic Nomenclature (ISCN)
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
236. Observation.component:cytogenomic-nomenclature.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
238. Observation.component:cytogenomic-nomenclature.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
240. Observation.component:cytogenomic-nomenclature.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
242. Observation.component:cytogenomic-nomenclature.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81291-7
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81291-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
244. Observation.component:cytogenomic-nomenclature.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Binding

Binding not yet defined

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
246. Observation.component:cytogenomic-nomenclature.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
248. Observation.component:cytogenomic-nomenclature.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
250. Observation.component:cytogenomic-nomenclature.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
252. Observation.component:genomic-ref-seq
Slice Namegenomic-ref-seq
Definition

ID of the genomic reference sequence, which includes transcribed and non transcribed stretches

ShortGenomic Reference Sequence
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
254. Observation.component:genomic-ref-seq.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
256. Observation.component:genomic-ref-seq.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
258. Observation.component:genomic-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
260. Observation.component:genomic-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48013-7
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48013-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
262. Observation.component:genomic-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned genomic reference sequence identifier
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
264. Observation.component:genomic-ref-seq.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
266. Observation.component:genomic-ref-seq.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
268. Observation.component:genomic-ref-seq.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
270. Observation.component:representative-protein-ref-seq
Slice Namerepresentative-protein-ref-seq
Definition

ID of the protein reference sequence, which includes transcribed and non transcribed stretches. It covers the entire protein described.

ShortProtein Reference Sequence
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
272. Observation.component:representative-protein-ref-seq.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
274. Observation.component:representative-protein-ref-seq.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
276. Observation.component:representative-protein-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
278. Observation.component:representative-protein-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortprotein-ref-seq
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;protein-ref-seq&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
280. Observation.component:representative-protein-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned protein reference sequence identifier
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
282. Observation.component:representative-protein-ref-seq.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
284. Observation.component:representative-protein-ref-seq.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
286. Observation.component:representative-protein-ref-seq.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
288. Observation.component:representative-transcript-ref-seq
Slice Namerepresentative-transcript-ref-seq
Definition

NCBI's RefSeq ('NM_...'), Ensembl ('ENST...'), and LRG ('LRG...' plus 't1' to indicate transcript)

ShortReference Transcript
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
290. Observation.component:representative-transcript-ref-seq.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
292. Observation.component:representative-transcript-ref-seq.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
294. Observation.component:representative-transcript-ref-seq.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
296. Observation.component:representative-transcript-ref-seq.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short51958-7
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;51958-7&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
298. Observation.component:representative-transcript-ref-seq.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortVersioned transcript reference sequence identifier
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Binding

Multiple bindings acceptable (NCBI or LRG)

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
300. Observation.component:representative-transcript-ref-seq.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
302. Observation.component:representative-transcript-ref-seq.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
304. Observation.component:representative-transcript-ref-seq.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
306. Observation.component:exact-start-end
Slice Nameexact-start-end
Definition

The exact integer-based genomic coordinates of the start and end of the variant region.

ShortExact Start-End
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
308. Observation.component:exact-start-end.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
310. Observation.component:exact-start-end.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
312. Observation.component:exact-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
314. Observation.component:exact-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81254-5
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81254-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
316. Observation.component:exact-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortRange in question. 'High' can be omitted for single nucleotide variants.
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
318. Observation.component:exact-start-end.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
320. Observation.component:exact-start-end.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
322. Observation.component:exact-start-end.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
324. Observation.component:inner-start-end
Slice Nameinner-start-end
Definition

The genomic coordinates of the narrowest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.

ShortInner Start-End
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
326. Observation.component:inner-start-end.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
328. Observation.component:inner-start-end.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
330. Observation.component:inner-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
332. Observation.component:inner-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81302-2
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81302-2&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
334. Observation.component:inner-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortImprecise variant inner-bounding range
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
336. Observation.component:inner-start-end.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
338. Observation.component:inner-start-end.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
340. Observation.component:inner-start-end.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
342. Observation.component:outer-start-end
Slice Nameouter-start-end
Definition

The genomic coordinates of the widest genomic range in which the variant might reside. Used when the exact boundaries of the variant are not clear.

ShortOuter Start-End
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
344. Observation.component:outer-start-end.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
346. Observation.component:outer-start-end.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
348. Observation.component:outer-start-end.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
350. Observation.component:outer-start-end.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81301-4
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81301-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
352. Observation.component:outer-start-end.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortImprecise variant outer-bounding range
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeRange
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
354. Observation.component:outer-start-end.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
356. Observation.component:outer-start-end.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
358. Observation.component:outer-start-end.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
360. Observation.component:coordinate-system
Slice Namecoordinate-system
Definition

These are different ways of identifying nucleotides or amino acids within a sequence. In the 1-based system, the first unit of the polymer (e.g. the first nucleotide) is counted as number 1. In the 0-based system, the number 0 designates the location before the first nucleotide. Different databases and file types may use different systems.

ShortCoordinate System
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
362. Observation.component:coordinate-system.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
364. Observation.component:coordinate-system.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
366. Observation.component:coordinate-system.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
368. Observation.component:coordinate-system.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short92822-6
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;92822-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
370. Observation.component:coordinate-system.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Short0-based interval counting | 0-based character counting | 1-based character counting
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL5323-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
372. Observation.component:coordinate-system.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
374. Observation.component:coordinate-system.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
376. Observation.component:coordinate-system.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
378. Observation.component:ref-allele
Slice Nameref-allele
Definition

Reference values ('normal') examined within the Reference Sequence.

ShortGenomic Ref Allele
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
380. Observation.component:ref-allele.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
382. Observation.component:ref-allele.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
384. Observation.component:ref-allele.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
386. Observation.component:ref-allele.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short69547-8
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69547-8&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
388. Observation.component:ref-allele.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortNormalized string per the VCF format.
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
390. Observation.component:ref-allele.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
392. Observation.component:ref-allele.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
394. Observation.component:ref-allele.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
396. Observation.component:alt-allele
Slice Namealt-allele
Definition

The genomic alternate allele is the contiguous segment of DNA in the test sample that differs from the reference allele at the same location and thus defines a variant.

ShortGenomic Alt Allele
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
398. Observation.component:alt-allele.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
400. Observation.component:alt-allele.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
402. Observation.component:alt-allele.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
404. Observation.component:alt-allele.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short69551-0
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;69551-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
406. Observation.component:alt-allele.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortNormalized string per the VCF format.
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
408. Observation.component:alt-allele.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
410. Observation.component:alt-allele.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
412. Observation.component:alt-allele.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
414. Observation.component:coding-change-type
Slice Namecoding-change-type
Definition

Type of DNA change observed. Convenience property for variants with exact breakpoints, required otherwise.

ShortCoding DNA Change Type
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
416. Observation.component:coding-change-type.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
418. Observation.component:coding-change-type.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
420. Observation.component:coding-change-type.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
422. Observation.component:coding-change-type.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48019-4
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48019-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
424. Observation.component:coding-change-type.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Shortdeletion | insertion | delins | SNV | copy_number_gain | copy_number_loss | ... (many)
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from DNA Change Type

Concepts in sequence ontology under SO:0002072

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
426. Observation.component:coding-change-type.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
428. Observation.component:coding-change-type.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
430. Observation.component:coding-change-type.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
432. Observation.component:genomic-source-class
Slice Namegenomic-source-class
Definition

The genomic class of the specimen being analyzed: Germline for inherited genome, somatic for cancer genome, and prenatal for fetal genome.

ShortGenomic Source Class
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
434. Observation.component:genomic-source-class.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
436. Observation.component:genomic-source-class.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
438. Observation.component:genomic-source-class.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
440. Observation.component:genomic-source-class.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48002-0
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48002-0&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
442. Observation.component:genomic-source-class.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortGermline | Somatic | Fetal | Likely germline | Likely somatic | Likely fetal | Unknown genomic origin | De novo
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL378-1
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
444. Observation.component:genomic-source-class.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
446. Observation.component:genomic-source-class.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
448. Observation.component:genomic-source-class.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
450. Observation.component:sample-allelic-frequency
Slice Namesample-allelic-frequency
Definition

The relative frequency of the allele at a given locus in the sample.

ShortSample Allelic Frequency
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
452. Observation.component:sample-allelic-frequency.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
454. Observation.component:sample-allelic-frequency.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
456. Observation.component:sample-allelic-frequency.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
458. Observation.component:sample-allelic-frequency.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81258-6
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81258-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
460. Observation.component:sample-allelic-frequency.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortRelative frequency in the sample
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
462. Observation.component:sample-allelic-frequency.value[x].id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
464. Observation.component:sample-allelic-frequency.value[x].extension
Definition

May be used to represent additional information that is not part of the basic definition of the element. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension.

ShortAdditional content defined by implementations
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Alternate Namesextensions, user content
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.component.value[x].extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
466. Observation.component:sample-allelic-frequency.value[x].value
Definition

The value of the measured amount. The value includes an implicit precision in the presentation of the value.

ShortNumerical value (with implicit precision)
Comments

The implicit precision in the value should always be honored. Monetary values have their own rules for handling precision (refer to standard accounting text books).

Control0..1
Typedecimal
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Precision is handled implicitly in almost all cases of measurement.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
468. Observation.component:sample-allelic-frequency.value[x].comparator
Definition

How the value should be understood and represented - whether the actual value is greater or less than the stated value due to measurement issues; e.g. if the comparator is "<" , then the real value is < stated value.

Short< | <= | >= | > - how to understand the value
Control0..1
BindingThe codes SHALL be taken from QuantityComparator

How the Quantity should be understood and represented.

Typecode
Is Modifiertrue because This is labeled as &quot;Is Modifier&quot; because the comparator modifies the interpretation of the value significantly. If there is no comparator, then there is no modification of the value
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need a framework for handling measures where the value is <5ug/L or >400mg/L due to the limitations of measuring methodology.

Meaning if MissingIf there is no comparator, then there is no modification of the value
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
470. Observation.component:sample-allelic-frequency.value[x].unit
Definition

A human-readable form of the unit.

ShortUnit representation
Control0..1
Typestring
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

There are many representations for units of measure and in many contexts, particular representations are fixed and required. I.e. mcg for micrograms.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
472. Observation.component:sample-allelic-frequency.value[x].system
Definition

The identification of the system that provides the coded form of the unit.

ShortSystem that defines coded unit form
Control0..1
This element is affected by the following invariants: qty-3
Typeuri
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need to know the system that defines the coded form of the unit.

Pattern Valuehttp://unitsofmeasure.org
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
474. Observation.component:sample-allelic-frequency.value[x].code
Definition

A computer processable form of the unit in some unit representation system.

ShortCoded form of the unit
Comments

The preferred system is UCUM, but SNOMED CT can also be used (for customary units) or ISO 4217 for currency. The context of use may additionally require a code from a particular system.

Control0..1
Typecode
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

Need a computable form of the unit that is fixed across all forms. UCUM provides this for quantities, but SNOMED CT provides many units of interest.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
476. Observation.component:sample-allelic-frequency.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
478. Observation.component:sample-allelic-frequency.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
480. Observation.component:sample-allelic-frequency.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
482. Observation.component:allelic-read-depth
Slice Nameallelic-read-depth
Definition

Specifies the number of reads that identified the allele in question whether it consists of one or a small sequence of contiguous nucleotides. Different methods and purposes require different numbers of reads to be acceptable. Often >400, sometimes as few as 2-4.

ShortAllelic Read Depth
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
484. Observation.component:allelic-read-depth.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
486. Observation.component:allelic-read-depth.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
488. Observation.component:allelic-read-depth.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
490. Observation.component:allelic-read-depth.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short82121-5
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82121-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
492. Observation.component:allelic-read-depth.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortUnfiltered count of supporting reads
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
494. Observation.component:allelic-read-depth.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
496. Observation.component:allelic-read-depth.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
498. Observation.component:allelic-read-depth.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
500. Observation.component:allelic-state
Slice Nameallelic-state
Definition

The observed level of occurrence of the variant in the set of chromosomes.

ShortAllelic State
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
502. Observation.component:allelic-state.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
504. Observation.component:allelic-state.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
506. Observation.component:allelic-state.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
508. Observation.component:allelic-state.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short53034-5
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;53034-5&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
510. Observation.component:allelic-state.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortHeteroplasmic | Homoplasmic | Homozygous | Heterozygous | Hemizygous
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL381-5
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
512. Observation.component:allelic-state.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
514. Observation.component:allelic-state.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
516. Observation.component:allelic-state.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
518. Observation.component:variant-inheritance
Slice Namevariant-inheritance
Definition

The source or inheritance of a specific germline variation found in an individual patient.

ShortOrigin of germline genetic variant
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
520. Observation.component:variant-inheritance.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
522. Observation.component:variant-inheritance.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
524. Observation.component:variant-inheritance.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
526. Observation.component:variant-inheritance.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short94186-4
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;94186-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
528. Observation.component:variant-inheritance.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortMaternal | Paternal | Unknown
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL5489-1
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
530. Observation.component:variant-inheritance.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
532. Observation.component:variant-inheritance.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
534. Observation.component:variant-inheritance.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
536. Observation.component:variant-inheritance-basis
Slice Namevariant-inheritance-basis
Definition

The method by which the variant inheritance is determined.

ShortEvidential basis for variant inheritance
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
538. Observation.component:variant-inheritance-basis.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
540. Observation.component:variant-inheritance-basis.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
542. Observation.component:variant-inheritance-basis.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
544. Observation.component:variant-inheritance-basis.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

ShortBasis for allelic phase
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82309-6&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
546. Observation.component:variant-inheritance-basis.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortDirectly measured | Family DNA | Family history | Inferred from population data
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingUnless not suitable, these codes SHALL be taken from LOINC Answer List LL4050-2
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
548. Observation.component:variant-inheritance-basis.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
550. Observation.component:variant-inheritance-basis.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
552. Observation.component:variant-inheritance-basis.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
554. Observation.component:variation-code
Slice Namevariation-code
Definition

Accession number in a variant database such as ClinVar, given for cross-reference.

ShortVariation Code
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
556. Observation.component:variation-code.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
558. Observation.component:variation-code.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
560. Observation.component:variation-code.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
562. Observation.component:variation-code.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short81252-9
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;81252-9&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
564. Observation.component:variation-code.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortClinVar ID or similar
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Binding

Multiple bindings acceptable

TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
566. Observation.component:variation-code.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
568. Observation.component:variation-code.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
570. Observation.component:variation-code.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
572. Observation.component:chromosome-identifier
Slice Namechromosome-identifier
Definition

An indicator, enumerated in humans by numbers 1-22, X, and Y, representing the chromosome on which the variant is located.

ShortChromosome Identifier
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
574. Observation.component:chromosome-identifier.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
576. Observation.component:chromosome-identifier.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
578. Observation.component:chromosome-identifier.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
580. Observation.component:chromosome-identifier.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48000-4
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48000-4&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
582. Observation.component:chromosome-identifier.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortChromosome 1 | Chromosome 2 | ... | Chromosome 22 | Chromosome X | Chromosome Y
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingThe codes SHALL be taken from LOINC Answer List LL2938-0
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
584. Observation.component:chromosome-identifier.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
586. Observation.component:chromosome-identifier.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
588. Observation.component:chromosome-identifier.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
590. Observation.component:representative-protein-hgvs
Slice Namerepresentative-protein-hgvs
Definition

Description of the protein (amino acid) sequence change using a valid HGVS-formatted string. The description of the variant is surrounded in parentheses if it is calculated rather than directly observed.

ShortProtein (Amino Acid) Change - pHGVS
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
592. Observation.component:representative-protein-hgvs.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
594. Observation.component:representative-protein-hgvs.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
596. Observation.component:representative-protein-hgvs.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
598. Observation.component:representative-protein-hgvs.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short48005-3
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;48005-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
600. Observation.component:representative-protein-hgvs.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortA valid HGVS-formatted 'p.' string, e.g. NP_000050.2:p.(Asn1836Lys)
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingThe codes SHALL be taken from Human Genome Variation Society (HGVS) Nomenclature
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
602. Observation.component:representative-protein-hgvs.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
604. Observation.component:representative-protein-hgvs.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
606. Observation.component:representative-protein-hgvs.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
608. Observation.component:copy-number
Slice Namecopy-number
Definition

The copy number of the large variant. In HGVS, this is the numeric value following the “X”. It is a unit-less value. If the value determined by the assay is not a whole number, a range or decimal number can be specified. Note that a copy number of 1 can imply a deletion.

ShortGenomic Structural Variant Copy Number
Comments

Copy number variants are often described with a single copy number value. However, due to the nature of assays, such as qPCR and microarray, it can be difficult to assign an exact copy number. Therefore, labs sometimes report a range instead of an exact copy number. They may alternatively choose to report decimal numbers, even if whole numbers are biologically correct.

In general, it can be difficult to estimate a copy number from measurements taken on a heterogenous population of cells, such as a tumor. As indicated in the ISCN 2020 specifications, it is appropriate to express the measurements using a range. Furthermore, regardless of cell population, many assays use fluorescent probes to detect copy number. These testing methodologies do not always provide an exact, discrete value for this data point.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

There SHALL be a code with a value of '1' if there is a value. If system is present, it SHALL be UCUM.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
610. Observation.component:copy-number.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
612. Observation.component:copy-number.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
614. Observation.component:copy-number.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
616. Observation.component:copy-number.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Short82155-3
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://loinc.org&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;82155-3&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
618. Observation.component:copy-number.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortActual component result
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control0..1
TypeChoice of: Quantity, Range
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
620. Observation.component:copy-number.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
622. Observation.component:copy-number.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
624. Observation.component:copy-number.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
626. Observation.component:variant-confidence-status
Slice Namevariant-confidence-status
Definition

A code that represents the confidence of a true positive variant call.

ShortVariant Confidence Status
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..1
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
628. Observation.component:variant-confidence-status.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
630. Observation.component:variant-confidence-status.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
632. Observation.component:variant-confidence-status.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
634. Observation.component:variant-confidence-status.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortvariant-confidence-status
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;variant-confidence-status&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
636. Observation.component:variant-confidence-status.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortHigh | Intermediate | Low
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
BindingThe codes SHALL be taken from Variant Confidence Status
TypeCodeableConcept
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
638. Observation.component:variant-confidence-status.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
640. Observation.component:variant-confidence-status.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
642. Observation.component:variant-confidence-status.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
644. Observation.component:repeat-motif
Slice Namerepeat-motif
Definition

Nucleotides of a repeat expansion motif.

ShortRepeat Motif
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
646. Observation.component:repeat-motif.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
648. Observation.component:repeat-motif.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.component.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
650. Observation.component:repeat-motif.extension:repeat-motif-order
Slice Namerepeat-motif-order
Definition

Use to group and order repeat expansion motifs.

ShortRepeat Motif Order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Is Modifierfalse
Requirements

The value must be a natural number starting from 1 and increasing sequentially

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
652. Observation.component:repeat-motif.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
654. Observation.component:repeat-motif.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortrepeat-motif
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-motif&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
656. Observation.component:repeat-motif.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

ShortCAG
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
Typestring
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Primitive ValueThis primitive element may be present, or absent, or replaced by an extension
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
658. Observation.component:repeat-motif.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
660. Observation.component:repeat-motif.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
662. Observation.component:repeat-motif.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
664. Observation.component:repeat-number
Slice Namerepeat-number
Definition

Number of repeats of a repeat expansion.

ShortRepeat Number
Comments

For a discussion on the ways Observations can be assembled in groups together see Notes below.

Control0..*
TypeBackboneElement
Is Modifierfalse
Summarytrue
Requirements

Component observations share the same attributes in the Observation resource as the primary observation and are always treated a part of a single observation (they are not separable). However, the reference range for the primary observation value is not inherited by the component values and is required when appropriate for each component observation.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
666. Observation.component:repeat-number.id
Definition

Unique id for the element within a resource (for internal references). This may be any string value that does not contain spaces.

ShortUnique id for inter-element referencing
Control0..1
Typestring
Is Modifierfalse
XML FormatIn the XML format, this property is represented as an attribute.
Summaryfalse
668. Observation.component:repeat-number.extension
Definition

An Extension

ShortExtension
Control0..*
TypeExtension
Is Modifierfalse
Summaryfalse
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
SlicingThis element introduces a set of slices on Observation.component.extension. The slices are unordered and Open, and can be differentiated using the following discriminators:
  • value @ url
670. Observation.component:repeat-number.extension:repeat-motif-order
Slice Namerepeat-motif-order
Definition

Use to group and order repeat expansion motifs.

ShortRepeat Motif Order
Comments

If there are multiple repeat expansion pairs, this must be used both to indicate the sequence position of a given repeat-motif and repeat-number pair and to group the related components together. Components with the same extension value describe the same motif.

Control0..1
This element is affected by the following invariants: ele-1
TypeExtension(Repeat Motif Order) (Extension Type: positiveInt)
Is Modifierfalse
Requirements

The value must be a natural number starting from 1 and increasing sequentially

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
672. Observation.component:repeat-number.modifierExtension
Definition

May be used to represent additional information that is not part of the basic definition of the element and that modifies the understanding of the element in which it is contained and/or the understanding of the containing element's descendants. Usually modifier elements provide negation or qualification. To make the use of extensions safe and manageable, there is a strict set of governance applied to the definition and use of extensions. Though any implementer can define an extension, there is a set of requirements that SHALL be met as part of the definition of the extension. Applications processing a resource are required to check for modifier extensions.

Modifier extensions SHALL NOT change the meaning of any elements on Resource or DomainResource (including cannot change the meaning of modifierExtension itself).

ShortExtensions that cannot be ignored even if unrecognized
Comments

There can be no stigma associated with the use of extensions by any application, project, or standard - regardless of the institution or jurisdiction that uses or defines the extensions. The use of extensions is what allows the FHIR specification to retain a core level of simplicity for everyone.

Control0..*
TypeExtension
Is Modifiertrue because Modifier extensions are expected to modify the meaning or interpretation of the element that contains them
Summarytrue
Requirements

Modifier extensions allow for extensions that cannot be safely ignored to be clearly distinguished from the vast majority of extensions which can be safely ignored. This promotes interoperability by eliminating the need for implementers to prohibit the presence of extensions. For further information, see the definition of modifier extensions.

Alternate Namesextensions, user content, modifiers
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
ext-1: Must have either extensions or value[x], not both (extension.exists() != value.exists())
674. Observation.component:repeat-number.code
Definition

Describes what was observed. Sometimes this is called the observation "code".

Shortrepeat-number
Comments

All code-value and component.code-component.value pairs need to be taken into account to correctly understand the meaning of the observation.

Control1..1
BindingFor example codes, see LOINCCodes

Codes identifying names of simple observations.

TypeCodeableConcept
Is Modifierfalse
Summarytrue
Requirements

Knowing what kind of observation is being made is essential to understanding the observation.

Pattern Value&lt;valueCodeableConcept&nbsp;xmlns=&quot;http://hl7.org/fhir&quot;&gt;<br/>&nbsp;&nbsp;&lt;coding&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;system&nbsp;value=&quot;http://hl7.org/fhir/uv/genomics-reporting/CodeSystem/tbd-codes-cs&quot;/&gt;<br/>&nbsp;&nbsp;&nbsp;&nbsp;&lt;code&nbsp;value=&quot;repeat-number&quot;/&gt;<br/>&nbsp;&nbsp;&lt;/coding&gt;<br/>&lt;/valueCodeableConcept&gt;<br/>
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
676. Observation.component:repeat-number.value[x]
Definition

The information determined as a result of making the observation, if the information has a simple value.

Short40
Comments

Used when observation has a set of component observations. An observation may have both a value (e.g. an Apgar score) and component observations (the observations from which the Apgar score was derived). If a value is present, the datatype for this element should be determined by Observation.code. A CodeableConcept with just a text would be used instead of a string if the field was usually coded, or if the type associated with the Observation.code defines a coded value. For additional guidance, see the Notes section below.

Control1..1
TypeQuantity
[x] NoteSee Choice of Data Types for further information about how to use [x]
Is Modifierfalse
Summarytrue
Requirements

An observation exists to have a value, though it might not if it is in error, or if it represents a group of observations.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
678. Observation.component:repeat-number.dataAbsentReason
Definition

Provides a reason why the expected value in the element Observation.component.value[x] is missing.

ShortWhy the component result is missing
Comments

"Null" or exceptional values can be represented two ways in FHIR Observations. One way is to simply include them in the value set and represent the exceptions in the value. For example, measurement values for a serology test could be "detected", "not detected", "inconclusive", or "test not done".

The alternate way is to use the value element for actual observations and use the explicit dataAbsentReason element to record exceptional values. For example, the dataAbsentReason code "error" could be used when the measurement was not completed. Because of these options, use-case agreements are required to interpret general observations for exceptional values.

Control0..1
This element is affected by the following invariants: obs-6
BindingUnless not suitable, these codes SHALL be taken from DataAbsentReason

Codes specifying why the result (Observation.value[x]) is missing.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For many results it is necessary to handle exceptional values in measurements.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
680. Observation.component:repeat-number.interpretation
Definition

A categorical assessment of an observation value. For example, high, low, normal.

ShortHigh, low, normal, etc.
Comments

Historically used for laboratory results (known as 'abnormal flag' ), its use extends to other use cases where coded interpretations are relevant. Often reported as one or more simple compact codes this element is often placed adjacent to the result value in reports and flow sheets to signal the meaning/normalcy status of the result.

Control0..*
BindingUnless not suitable, these codes SHALL be taken from ObservationInterpretationCodes

Codes identifying interpretations of observations.

TypeCodeableConcept
Is Modifierfalse
Summaryfalse
Requirements

For some results, particularly numeric results, an interpretation is necessary to fully understand the significance of a result.

Alternate NamesAbnormal Flag
Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
682. Observation.component:repeat-number.referenceRange
Definition

Guidance on how to interpret the value by comparison to a normal or recommended range.

ShortProvides guide for interpretation of component result
Comments

Most observations only have one generic reference range. Systems MAY choose to restrict to only supplying the relevant reference range based on knowledge about the patient (e.g., specific to the patient's age, gender, weight and other factors), but this might not be possible or appropriate. Whenever more than one reference range is supplied, the differences between them SHOULD be provided in the reference range and/or age properties.

Control0..*
TypeSee ttp://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange
Is Modifierfalse
Summaryfalse
Requirements

Knowing what values are considered "normal" can help evaluate the significance of a particular result. Need to be able to provide multiple reference ranges for different contexts.

Invariantsele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))