Vital Sign Observation - Definitions - Consolidated CDA (C-CDA) v3.0.0

This page is part of the CCDA: Consolidated CDA Release (v3.0.0: CCDA 3.0) generated with FHIR (HL7® FHIR® Standard) v5.0.0. This is the current published version in its permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions

Logical Model: VitalSignObservation - Detailed Descriptions

Draft as of 2024-05-18

Definitions for the VitalSignObservation logical model.

Differential Elements Table
Key Elements Table
Snapshot Elements Table

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

0. Observation
Logical Container	ClinicalDocument (CDA Class)
Validation	Instance of this type are validated by templateId
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
Invariants	should-text-ref-value: SHOULD contain text/reference/@value (`text.reference.value.exists()`) should-code: SHOULD contain code (`code.exists()`) should-author: SHOULD contain author (`author.exists()`) should-percent: Percentage codes (PulseOx, O2 Concentration, Percentiles) should be represented with % (`(code.code in ('2708-6' \| '3150-0' \| '59408-5' \| '8289-1' \| '59575-1' \| '59576-9')) implies value.unit = '%'`) should-cm: Height & Head Circumference should be represented in cm (`(code.code in ('8287-5' \| '8302-2' \| '8306-3' \| '9843-4')) implies value.unit = 'cm'`) should-kg: Weight should be represented in kg (`(code.code = '29463-7') implies value.unit = 'kg'`) should-cel: Temperature should be represented in Celcius (Cel) (`(code.code = '8310-5') implies value.unit = 'Cel'`) should-bp: Blood pressure should be represented in mm[Hg] (`(code.code in ('8480-6' \| '8462-4' \| '8478-0' \| '96608-5' \| '96609-3')) implies value.unit = 'mm[Hg]'`) should-rates: Rates should be represented in /min (`(code.code in ('8867-4' \| '9279-1')) implies value.unit = '/min'`) should-bmi: BMI should be represented in kg/m2 (`(code.code = '39156-5') implies value.unit = 'kg/m2'`) should-bsa: BSA should be represented in m2 (`(code.code = '3140-1') implies value.unit = 'm2'`)
2. Observation.templateId
Control	1..?
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ root value @ extension
4. Observation.templateId:vital-sign-obs
Slice Name	vital-sign-obs
Control	1..1
6. Observation.templateId:vital-sign-obs.root
Control	1..?
Pattern Value	`2.16.840.1.113883.10.20.22.4.27`
8. Observation.templateId:vital-sign-obs.extension
Control	1..?
Pattern Value	`2014-06-09`
10. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-7297).
Fixed Value	`OBS`
12. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:1098-7298).
Fixed Value	`EVN`
14. Observation.id
Comments	SHALL contain at least one [1..*] id (CONF:1098-7300).
Control	1..?
16. Observation.code
Comments	SHALL contain exactly one [1..1] code (CONF:1098-7301).
18. Observation.code.code
Comments	This code SHOULD contain zero or one [0..1] @code, which SHOULD be selected from ValueSet Vital Sign Result Type urn:oid:2.16.840.1.113883.3.88.12.80.62 DYNAMIC (CONF:1098-32934).
Binding	The codes SHOULD be taken from Vital Sign Result Type (preferred to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.88.12.80.62`)
20. Observation.text
Short	SHOULD reference the portion of section narrative text corresponding to this entry
22. Observation.text.reference
Invariants	value-starts-octothorpe: If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative (`value.exists() implies value.startsWith('#')`)
24. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:1098-7303).
Control	1..?
26. Observation.statusCode.code
Comments	This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14 STATIC) (CONF:1098-19119).
Control	1..?
Fixed Value	`completed`
28. Observation.effectiveTime
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:1098-7304).
Control	1..?
30. Observation.value
Comments	SHALL contain exactly one [1..1] value with @xsi:type="PQ" (CONF:1098-7305).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/PQ, http://hl7.org/cda/stds/core/StructureDefinition/EIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/CO, http://hl7.org/cda/stds/core/StructureDefinition/TEL, http://hl7.org/cda/stds/core/StructureDefinition/EN, http://hl7.org/cda/stds/core/StructureDefinition/BL, http://hl7.org/cda/stds/core/StructureDefinition/AD, http://hl7.org/cda/stds/core/StructureDefinition/PIVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/RTO-PQ-PQ, http://hl7.org/cda/stds/core/StructureDefinition/SXPR-TS, http://hl7.org/cda/stds/core/StructureDefinition/ED, http://hl7.org/cda/stds/core/StructureDefinition/TS, http://hl7.org/cda/stds/core/StructureDefinition/II, http://hl7.org/cda/stds/core/StructureDefinition/ST, http://hl7.org/cda/stds/core/StructureDefinition/CD, http://hl7.org/cda/stds/core/StructureDefinition/IVL-PQ, http://hl7.org/cda/stds/core/StructureDefinition/CE, http://hl7.org/cda/stds/core/StructureDefinition/MO, http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS, http://hl7.org/cda/stds/core/StructureDefinition/ANY, http://hl7.org/cda/stds/core/StructureDefinition/INT, http://hl7.org/cda/stds/core/StructureDefinition/REAL, http://hl7.org/cda/stds/core/StructureDefinition/CV, http://hl7.org/cda/stds/core/StructureDefinition/SC
32. Observation.value.unit
Short	NOTE: The base CDA R2.0 standard requires @unit to be drawn from UCUM, and best practice is to use case sensitive UCUM units
Comments	This value SHALL contain exactly one [1..1] @unit, which SHALL be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC (CONF:1098-31579). Use a default of 1 for @unit when @nullFlavor is present.
Control	1..?
Binding	The codes SHALL be taken from UnitsOfMeasureCaseSensitive (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.12839`)
34. Observation.interpretationCode
Comments	MAY contain zero or one [0..1] interpretationCode (CONF:1098-7307).
Control	0..1
36. Observation.interpretationCode.nullFlavor
Control	0..0
38. Observation.interpretationCode.code
Control	1..?
Binding	The codes SHALL be taken from Observation Interpretation (HL7) (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.78`)
40. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:1098-7308).
Control	0..1
42. Observation.targetSiteCode
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:1098-7309).
Control	0..1
44. Observation.author
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-7310).
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)

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

0. Observation
Definition	Defines the basic properties of every data value. This is an abstract type, meaning that no value can be just a data value without belonging to any concrete type. Every concrete type is a specialization of this general abstract DataValue type. Base definition for all types defined in FHIR type system.
Short	Base for all types and resources
Control	10..1*
Is Modifier	false
Logical Container	ClinicalDocument (CDA Class)
Validation	Instance of this type are validated by templateId
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
Invariants	should-text-ref-value: SHOULD contain text/reference/@value (`text.reference.value.exists()`) should-code: SHOULD contain code (`code.exists()`) should-author: SHOULD contain author (`author.exists()`) should-percent: Percentage codes (PulseOx, O2 Concentration, Percentiles) should be represented with % (`(code.code in ('2708-6' \| '3150-0' \| '59408-5' \| '8289-1' \| '59575-1' \| '59576-9')) implies value.unit = '%'`) should-cm: Height & Head Circumference should be represented in cm (`(code.code in ('8287-5' \| '8302-2' \| '8306-3' \| '9843-4')) implies value.unit = 'cm'`) should-kg: Weight should be represented in kg (`(code.code = '29463-7') implies value.unit = 'kg'`) should-cel: Temperature should be represented in Celcius (Cel) (`(code.code = '8310-5') implies value.unit = 'Cel'`) should-bp: Blood pressure should be represented in mm[Hg] (`(code.code in ('8480-6' \| '8462-4' \| '8478-0' \| '96608-5' \| '96609-3')) implies value.unit = 'mm[Hg]'`) should-rates: Rates should be represented in /min (`(code.code in ('8867-4' \| '9279-1')) implies value.unit = '/min'`) should-bmi: BMI should be represented in kg/m2 (`(code.code = '39156-5') implies value.unit = 'kg/m2'`) should-bsa: BSA should be represented in m2 (`(code.code = '3140-1') implies value.unit = 'm2'`)
2. Observation.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ root value @ extension
4. Observation.templateId:vital-sign-obs
Slice Name	vital-sign-obs
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
6. Observation.templateId:vital-sign-obs.root
Definition	A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Pattern Value	`2.16.840.1.113883.10.20.22.4.27`
8. Observation.templateId:vital-sign-obs.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
Pattern Value	`2014-06-09`
10. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-7297).
Control	1..1
Binding	The codes SHALL be taken from CDAActClassObservation (required to `http://hl7.org/cda/stds/core/ValueSet/CDAActClassObservation`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`OBS`
12. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:1098-7298).
Control	1..1
Binding	The codes SHALL be taken from XActMoodDocumentObservation (2.0.0) (required to `http://terminology.hl7.org/ValueSet/v3-xActMoodDocumentObservation\|2.0.0`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`EVN`
14. Observation.id
Definition	The logical id of the resource, as used in the URL for the resource. Once assigned, this value never changes.
Short	Logical id of this artifact
Comments	SHALL contain at least one [1..*] id (CONF:1098-7300). Within the context of the FHIR RESTful interactions, the resource has an id except for cases like the create and conditional update. Otherwise, the use of the resouce id depends on the given use case.
Control	10..*1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IIid
Is Modifier	false
16. Observation.code
Definition	Describes what was observed. Sometimes this is called the observation "name".
Short	Type of observation (code / type)
Comments	SHALL contain exactly one [1..1] code (CONF:1098-7301). 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.
Control	1..1 This element is affected by the following invariants: obs-7
Binding	For example codes, see ObservationTypehttp://hl7.org/fhir/ValueSet/observation-codes (example to `http://terminology.hl7.org/ValueSet/v3-ObservationType`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CDCodeableConcept
Is Modifier	false
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Requirements	Knowing what kind of observation is being made is essential to understanding the observation.
Alternate Names	Name
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
18. Observation.code.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This code SHOULD contain zero or one [0..1] @code, which SHOULD be selected from ValueSet Vital Sign Result Type urn:oid:2.16.840.1.113883.3.88.12.80.62 DYNAMIC (CONF:1098-32934).
Control	0..1
Binding	The codes SHOULD be taken from Vital Sign Result Type (preferred to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.88.12.80.62`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
20. 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.
Short	SHOULD reference the portion of section narrative text corresponding to this entryText summary of the resource, for human interpretation
Comments	Contained resources do not have a 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.
Control	0..1 This element is affected by the following invariants: dom-6
Type	http://hl7.org/cda/stds/core/StructureDefinition/EDNarrative
Is Modifier	false
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Alternate Names	narrative, html, xhtml, display
Invariants	ele-1: All FHIR elements must have a @value or children (hasValue() or (children().count() > id.count()))
22. Observation.text.reference
Definition	A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/TEL
Label	Reference
Invariants	value-starts-octothorpe: If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative (`value.exists() implies value.startsWith('#')`)
24. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:1098-7303).
Control	1..1
Binding	The codes SHALL be taken from ActStatus (required to `http://terminology.hl7.org/ValueSet/v3-ActStatus`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
26. Observation.statusCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14 STATIC) (CONF:1098-19119).
Control	1..1
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
Fixed Value	`completed`
28. Observation.statusCode.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..0
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
30. Observation.statusCode.codeSystemName
Definition	The common name of the coding system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
32. Observation.statusCode.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
34. Observation.statusCode.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
36. Observation.statusCode.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
38. Observation.statusCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
40. Observation.statusCode.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Label	Translation
42. Observation.effectiveTime
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:1098-7304).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
44. Observation.value
Comments	SHALL contain exactly one [1..1] value with @xsi:type="PQ" (CONF:1098-7305).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/PQ
XML Format	The type of this property is determined using the " `xsi:type`attribute.
46. Observation.value.unit
Definition	The unit of measure specified in the Unified Code for Units of Measure (UCUM) [].
Short	NOTE: The base CDA R2.0 standard requires @unit to be drawn from UCUM, and best practice is to use case sensitive UCUM units
Comments	This value SHALL contain exactly one [1..1] @unit, which SHALL be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC (CONF:1098-31579). Use a default of 1 for @unit when @nullFlavor is present.
Control	1..1
Binding	The codes SHALL be taken from UnitsOfMeasureCaseSensitive (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.12839`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Unit of Measure
Default Value	`1`
48. Observation.interpretationCode
Comments	MAY contain zero or one [0..1] interpretationCode (CONF:1098-7307).
Control	0..1
Binding	The codes SHALL be taken from CDAObservationInterpretation (required to `http://hl7.org/cda/stds/core/ValueSet/CDAObservationInterpretation`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
50. Observation.interpretationCode.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..0
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
52. Observation.interpretationCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Control	1..1
Binding	The codes SHALL be taken from Observation Interpretation (HL7) (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.78`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
54. Observation.interpretationCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
56. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:1098-7308).
Control	0..1
Binding	For example codes, see ObservationMethod (example to `http://terminology.hl7.org/ValueSet/v3-ObservationMethod`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
58. Observation.targetSiteCode
Definition	Drawn from concept domain ActSite
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:1098-7309).
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
60. Observation.author
Definition	Defines the basic properties of every data value. This is an abstract type, meaning that no value can be just a data value without belonging to any concrete type. Every concrete type is a specialization of this general abstract DataValue type.
Short	Base for all types and resources
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-7310).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifier	false

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

0. Observation
Definition	Defines the basic properties of every data value. This is an abstract type, meaning that no value can be just a data value without belonging to any concrete type. Every concrete type is a specialization of this general abstract DataValue type.
Short	Base for all types and resources
Control	1..1
Is Modifier	false
Logical Container	ClinicalDocument (CDA Class)
Validation	Instance of this type are validated by templateId
XML Format	In the XML format, this property has the namespace `urn:hl7-org:v3`.
Invariants	should-text-ref-value: SHOULD contain text/reference/@value (`text.reference.value.exists()`) should-code: SHOULD contain code (`code.exists()`) should-author: SHOULD contain author (`author.exists()`) should-percent: Percentage codes (PulseOx, O2 Concentration, Percentiles) should be represented with % (`(code.code in ('2708-6' \| '3150-0' \| '59408-5' \| '8289-1' \| '59575-1' \| '59576-9')) implies value.unit = '%'`) should-cm: Height & Head Circumference should be represented in cm (`(code.code in ('8287-5' \| '8302-2' \| '8306-3' \| '9843-4')) implies value.unit = 'cm'`) should-kg: Weight should be represented in kg (`(code.code = '29463-7') implies value.unit = 'kg'`) should-cel: Temperature should be represented in Celcius (Cel) (`(code.code = '8310-5') implies value.unit = 'Cel'`) should-bp: Blood pressure should be represented in mm[Hg] (`(code.code in ('8480-6' \| '8462-4' \| '8478-0' \| '96608-5' \| '96609-3')) implies value.unit = 'mm[Hg]'`) should-rates: Rates should be represented in /min (`(code.code in ('8867-4' \| '9279-1')) implies value.unit = '/min'`) should-bmi: BMI should be represented in kg/m2 (`(code.code = '39156-5') implies value.unit = 'kg/m2'`) should-bsa: BSA should be represented in m2 (`(code.code = '3140-1') implies value.unit = 'm2'`)
2. Observation.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
4. Observation.realmCode
Definition	When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
6. Observation.typeId
Definition	When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
8. Observation.typeId.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
10. Observation.typeId.assigningAuthorityName
Definition	A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Assigning Authority Name
12. Observation.typeId.displayable
Definition	Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Displayable
14. Observation.typeId.root
Definition	Identifies the type as an HL7 Registered model
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Fixed Value	`2.16.840.1.113883.1.3`
16. Observation.typeId.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
18. Observation.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
Slicing	This element introduces a set of slices on `Observation.templateId`. The slices areUnordered and Open, and can be differentiated using the following discriminators: value @ root value @ extension
20. Observation.templateId:vital-sign-obs
Slice Name	vital-sign-obs
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
22. Observation.templateId:vital-sign-obs.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
24. Observation.templateId:vital-sign-obs.assigningAuthorityName
Definition	A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Assigning Authority Name
26. Observation.templateId:vital-sign-obs.displayable
Definition	Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Displayable
28. Observation.templateId:vital-sign-obs.root
Definition	A unique identifier that guarantees the global uniqueness of the instance identifier. The root alone may be the entire instance identifier.
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Pattern Value	`2.16.840.1.113883.10.20.22.4.27`
30. Observation.templateId:vital-sign-obs.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
Pattern Value	`2014-06-09`
32. Observation.classCode
Comments	SHALL contain exactly one [1..1] @classCode="OBS" Observation (CodeSystem: HL7ActClass urn:oid:2.16.840.1.113883.5.6 STATIC) (CONF:1098-7297).
Control	1..1
Binding	The codes SHALL be taken from CDAActClassObservation (required to `http://hl7.org/cda/stds/core/ValueSet/CDAActClassObservation`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`OBS`
34. Observation.moodCode
Comments	SHALL contain exactly one [1..1] @moodCode="EVN" Event (CodeSystem: HL7ActMood urn:oid:2.16.840.1.113883.5.1001 STATIC) (CONF:1098-7298).
Control	1..1
Binding	The codes SHALL be taken from XActMoodDocumentObservation (2.0.0) (required to `http://terminology.hl7.org/ValueSet/v3-xActMoodDocumentObservation\|2.0.0`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`EVN`
36. Observation.negationInd
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
38. Observation.id
Comments	SHALL contain at least one [1..*] id (CONF:1098-7300).
Control	1..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
40. Observation.code
Comments	SHALL contain exactly one [1..1] code (CONF:1098-7301).
Control	1..1
Binding	For example codes, see ObservationType (example to `http://terminology.hl7.org/ValueSet/v3-ObservationType`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the " `xsi:type`attribute.
42. Observation.code.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
44. Observation.code.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This code SHOULD contain zero or one [0..1] @code, which SHOULD be selected from ValueSet Vital Sign Result Type urn:oid:2.16.840.1.113883.3.88.12.80.62 DYNAMIC (CONF:1098-32934).
Control	0..1
Binding	The codes SHOULD be taken from Vital Sign Result Type (preferred to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.3.88.12.80.62`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
46. Observation.code.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
48. Observation.code.codeSystemName
Definition	The common name of the coding system.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
50. Observation.code.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
52. Observation.code.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
54. Observation.code.sdtcValueSet
Definition	The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.
Control	0..1
Type	string(oid: ISO Object Identifier)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSet`.
56. Observation.code.sdtcValueSetVersion
Definition	The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSetVersion`.
58. Observation.code.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
60. Observation.code.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
62. Observation.code.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Label	Translation
64. Observation.derivationExpr
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ST
66. Observation.text
Short	SHOULD reference the portion of section narrative text corresponding to this entry
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
XML Format	The type of this property is determined using the " `xsi:type`attribute.
68. Observation.text.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
70. Observation.text.compression
Definition	Indicates whether the raw byte data is compressed, and what compression algorithm was used.
Control	0..1
Binding	The codes SHALL be taken from CDACompressionAlgorithm (required to `http://hl7.org/cda/stds/core/ValueSet/CDACompressionAlgorithm`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Compression
72. Observation.text.integrityCheck
Definition	The integrity check is a short binary value representing a cryptographically strong checksum that is calculated over the binary data. The purpose of this property, when communicated with a reference is for anyone to validate later whether the reference still resolved to the same data that the reference resolved to when the encapsulated data value with reference was created.
Control	0..1
Type	base64Binary(bin: Binary Data)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Integrity Check
74. Observation.text.integrityCheckAlgorithm
Definition	Specifies the algorithm used to compute the integrityCheck value. The cryptographically strong checksum algorithm Secure Hash Algorithm-1 (SHA-1) is currently the industry standard. It has superseded the MD5 algorithm only a couple of years ago, when certain flaws in the security of MD5 were discovered. Currently the SHA-1 hash algorithm is the default choice for the integrity check algorithm. Note that SHA-256 is also entering widespread usage.
Control	0..1
Binding	The codes SHALL be taken from IntegrityCheckAlgorithm (2.0.0) (required to `http://terminology.hl7.org/ValueSet/v3-IntegrityCheckAlgorithm\|2.0.0`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Integrity Check Algorithm
76. Observation.text.language
Definition	For character based information the language property specifies the human language of the text.
Control	0..1
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Language
78. Observation.text.mediaType
Definition	Identifies the type of the encapsulated data and identifies a method to interpret or render the data.
Control	0..1
Binding	For example codes, see MediaType (example to `http://terminology.hl7.org/ValueSet/v3-MediaType`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Media Type
80. Observation.text.representation
Control	0..1
Binding	The codes SHALL be taken from CDABinaryDataEncoding (required to `http://hl7.org/cda/stds/core/ValueSet/BinaryDataEncoding`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
82. Observation.text.xmlText
Definition	Data that is primarily intended for human interpretation or for further machine processing is outside the scope of HL7. This includes unformatted or formatted written language, multimedia data, or structured information as defined by a different standard (e.g., XML-signatures.)
Short	Allows for mixed text content. If @representation='B64', this SHALL be a base64binary string.
Comments	This element is represented in XML as textual content. The actual name "xmlText" will not appear in a CDA instance.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as unadorned text.
84. Observation.text.reference
Definition	A telecommunication address (TEL), such as a URL for HTTP or FTP, which will resolve to precisely the same binary data that could as well have been provided as inline data.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/TEL
Label	Reference
Invariants	value-starts-octothorpe: If reference/@value is present, it SHALL begin with a '#' and SHALL point to its corresponding narrative (`value.exists() implies value.startsWith('#')`)
86. Observation.text.thumbnail
Definition	An abbreviated rendition of the full data. A thumbnail requires significantly fewer resources than the full data, while still maintaining some distinctive similarity with the full data. A thumbnail is typically used with by-reference encapsulated data. It allows a user to select data more efficiently before actually downloading through the reference.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Thumbnail
88. Observation.statusCode
Comments	SHALL contain exactly one [1..1] statusCode (CONF:1098-7303).
Control	1..1
Binding	The codes SHALL be taken from ActStatus (required to `http://terminology.hl7.org/ValueSet/v3-ActStatus`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
90. Observation.statusCode.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
92. Observation.statusCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Comments	This statusCode SHALL contain exactly one [1..1] @code="completed" Completed (CodeSystem: HL7ActStatus urn:oid:2.16.840.1.113883.5.14 STATIC) (CONF:1098-19119).
Control	1..1
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
Fixed Value	`completed`
94. Observation.statusCode.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..0
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
96. Observation.statusCode.codeSystemName
Definition	The common name of the coding system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
98. Observation.statusCode.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
100. Observation.statusCode.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..0
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
102. Observation.statusCode.sdtcValueSet
Definition	The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.
Control	0..1
Type	string(oid: ISO Object Identifier)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSet`.
104. Observation.statusCode.sdtcValueSetVersion
Definition	The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSetVersion`.
106. Observation.statusCode.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
108. Observation.statusCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
110. Observation.statusCode.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Label	Translation
112. Observation.effectiveTime
Comments	SHALL contain exactly one [1..1] effectiveTime (CONF:1098-7304).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-TS
114. Observation.priorityCode
Control	0..1
Binding	For example codes, see ActPriority (example to `http://terminology.hl7.org/ValueSet/v3-ActPriority`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
116. Observation.repeatNumber
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/IVL-INT
118. Observation.languageCode
Control	0..1
Binding	The codes SHALL be taken from AllLanguages (required to `http://hl7.org/fhir/ValueSet/all-languages`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
120. Observation.value
Comments	SHALL contain exactly one [1..1] value with @xsi:type="PQ" (CONF:1098-7305).
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/PQ
XML Format	The type of this property is determined using the " `xsi:type`attribute.
122. Observation.value.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
124. Observation.value.unit
Definition	The unit of measure specified in the Unified Code for Units of Measure (UCUM) [].
Short	NOTE: The base CDA R2.0 standard requires @unit to be drawn from UCUM, and best practice is to use case sensitive UCUM units
Comments	This value SHALL contain exactly one [1..1] @unit, which SHALL be selected from ValueSet UnitsOfMeasureCaseSensitive urn:oid:2.16.840.1.113883.1.11.12839 DYNAMIC (CONF:1098-31579). Use a default of 1 for @unit when @nullFlavor is present.
Control	1..1
Binding	The codes SHALL be taken from UnitsOfMeasureCaseSensitive (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.12839`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Unit of Measure
Default Value	`1`
126. Observation.value.value
Definition	The magnitude of the quantity measured in terms of the unit.
Control	0..1
Type	decimal(real: Real Number)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Maginitude Value
128. Observation.value.translation
Definition	An alternative representation of the same physical quantity expressed in a different unit, of a different unit code system and possibly with a different value.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/PQR
Label	Translation
130. Observation.interpretationCode
Comments	MAY contain zero or one [0..1] interpretationCode (CONF:1098-7307).
Control	0..1
Binding	The codes SHALL be taken from CDAObservationInterpretation (required to `http://hl7.org/cda/stds/core/ValueSet/CDAObservationInterpretation`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
132. Observation.interpretationCode.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..0
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
134. Observation.interpretationCode.code
Definition	The plain code symbol defined by the code system. For example, "784.0" is the code symbol of the ICD-9 code "784.0" for headache.
Control	1..1
Binding	The codes SHALL be taken from Observation Interpretation (HL7) (required to `http://cts.nlm.nih.gov/fhir/ValueSet/2.16.840.1.113883.1.11.78`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code
136. Observation.interpretationCode.codeSystem
Definition	Specifies the code system that defines the code.
Control	0..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System
138. Observation.interpretationCode.codeSystemName
Definition	The common name of the coding system.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Name
140. Observation.interpretationCode.codeSystemVersion
Definition	If applicable, a version descriptor defined specifically for the given code system.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Code System Version
142. Observation.interpretationCode.displayName
Definition	A name or title for the code, under which the sending system shows the code value to its users.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Display Name
144. Observation.interpretationCode.sdtcValueSet
Definition	The valueSet extension adds an attribute for elements with a CD dataType which indicates the particular value set constraining the coded concept.
Control	0..1
Type	string(oid: ISO Object Identifier)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSet`.
146. Observation.interpretationCode.sdtcValueSetVersion
Definition	The valueSetVersion extension adds an attribute for elements with a CD dataType which indicates the version of the particular value set constraining the coded concept.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`valueSetVersion`.
148. Observation.interpretationCode.originalText
Definition	The text or phrase used as the basis for the coding.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ED
Label	Original Text
150. Observation.interpretationCode.qualifier
Definition	Specifies additional codes that increase the specificity of the the primary code.
Control	0..0
Type	http://hl7.org/cda/stds/core/StructureDefinition/CR
Label	Qualifier
152. Observation.interpretationCode.translation
Definition	A set of other concept descriptors that translate this concept descriptor into other code systems.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
XML Format	The type of this property is determined using the " `xsi:type`attribute.
Label	Translation
154. Observation.methodCode
Comments	MAY contain zero or one [0..1] methodCode (CONF:1098-7308).
Control	0..1
Binding	For example codes, see ObservationMethod (example to `http://terminology.hl7.org/ValueSet/v3-ObservationMethod`)
Type	http://hl7.org/cda/stds/core/StructureDefinition/CE
156. Observation.targetSiteCode
Definition	Drawn from concept domain ActSite
Comments	MAY contain zero or one [0..1] targetSiteCode (CONF:1098-7309).
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/CD
158. Observation.subject
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/Subject
160. Observation.specimen
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Specimen
162. Observation.performer
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Performer2
164. Observation.author
Definition	Defines the basic properties of every data value. This is an abstract type, meaning that no value can be just a data value without belonging to any concrete type. Every concrete type is a specialization of this general abstract DataValue type.
Short	Base for all types and resources
Comments	SHOULD contain zero or more [0..*] Author Participation (identifier: urn:oid:2.16.840.1.113883.10.20.22.4.119) (CONF:1098-7310).
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Author(Author Participation)
Is Modifier	false
166. Observation.informant
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Informant
168. Observation.participant
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Participant2
170. Observation.entryRelationship
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/EntryRelationship
172. Observation.reference
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Reference
174. Observation.precondition
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Precondition
176. Observation.sdtcPrecondition2
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/Precondition2
XML Format	In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`precondition2`.
178. Observation.referenceRange
Definition	Relates an Observation to the ObservationRange class, where the expected range of values for a particular observation can be specified.
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/InfrastructureRoot
180. Observation.referenceRange.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
182. Observation.referenceRange.realmCode
Definition	When valued in an instance, this attribute signals the imposition of realm-specific constraints. The value of this attribute identifies the realm in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/CS
184. Observation.referenceRange.typeId
Definition	When valued in an instance, this attribute signals the imposition of constraints defined in an HL7-specified message type. This might be a common type (also known as CMET in the messaging communication environment), or content included within a wrapper. The value of this attribute provides a unique identifier for the type in question.
Control	0..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
186. Observation.referenceRange.typeId.nullFlavor
Definition	If a value is an exceptional value (NULL-value), this specifies in what way and why proper information is missing.
Control	0..1
Binding	The codes SHALL be taken from CDANullFlavor (required to `http://hl7.org/cda/stds/core/ValueSet/CDANullFlavor`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Exceptional Value Detail
188. Observation.referenceRange.typeId.assigningAuthorityName
Definition	A human readable name or mnemonic for the assigning authority. The Assigning Authority Name has no computational value. The purpose of a Assigning Authority Name is to assist an unaided human interpreter of an II value to interpret the authority. Note: no automated processing must depend on the assigning authority name to be present in any form.
Control	0..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Assigning Authority Name
190. Observation.referenceRange.typeId.displayable
Definition	Specifies if the identifier is intended for human display and data entry (displayable = true) as opposed to pure machine interoperation (displayable = false).
Control	0..1
Type	boolean(bl: Boolean)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Displayable
192. Observation.referenceRange.typeId.root
Definition	Identifies the type as an HL7 Registered model
Control	1..1
Type	string(oid: ISO Object Identifier, uuid: DCE Universal Unique Identifier, ruid: HL7 Reserved Identifier Scheme)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Root
Fixed Value	`2.16.840.1.113883.1.3`
194. Observation.referenceRange.typeId.extension
Definition	A character string as a unique identifier within the scope of the identifier root.
Control	1..1
Type	string(st: Character String)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Label	Extension
196. Observation.referenceRange.templateId
Definition	When valued in an instance, this attribute signals the imposition of a set of template-defined constraints. The value of this attribute provides a unique identifier for the templates in question
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/II
198. Observation.referenceRange.typeCode
Control	0..1
Binding	The codes SHALL be taken from CDAActRelationshipType (required to `http://hl7.org/cda/stds/core/ValueSet/CDAActRelationshipType`)
Type	code(cs: Coded Simple Value)
Primitive Value	This primitive element may be present, or absent, or replaced by an extension
XML Format	In the XML format, this property is represented as an attribute.
Fixed Value	`REFV`
200. Observation.referenceRange.observationRange
Control	1..1
Type	http://hl7.org/cda/stds/core/StructureDefinition/ObservationRange
202. Observation.sdtcInFulfillmentOf1
Control	0..*
Type	http://hl7.org/cda/stds/core/StructureDefinition/InFulfillmentOf1
XML Format	In the XML format, this property has the namespace `urn:hl7-org:sdtc`.In the XML format, this property has the actual name`inFulfillmentOf1`.