Release 5

This page is part of the FHIR Specification (v5.0.0: R5 - STU). This is the current published version in it's permanent home (it will always be available at this URL). For a full list of available versions, see the Directory of published versions . Page versions: R5 R4B R4 R3

Orders and Observations icon Work Group Maturity Level: 0Trial Use Use Context: Any

The canonical URL for this profile is:

http://hl7.org/fhir/StructureDefinition/headcircum

FHIR Head Circumference Profile

This profile was published on Sat, Aug 11, 2018 00:00+1000 as a draft by Health Level Seven International (Orders and Observations Workgroup).

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

This structure is derived from Observationvitalsigns.

Summary

  1. One code in Observation.code which must have
    • a fixed Observation.code.coding.system='http ://loinc.org'
    • a fixed Observation.code.coding.code= '9843-4'
    • Other additional Codings are allowed in Observation.code- e.g. more specific LOINC Codes, SNOMED CT concepts, system specific codes. All codes SHALL have a system value
  2. Either one Observation.valueQuantity or, if there is no value, one code in Observation.DataAbsentReason
    • Each Observation.valueQuantity must have:
      • One numeric value in Observation.valueQuantity.value
      • a fixed Observation.valueQuantity.system="http://unitsofmeasure.org"
      • a UCUM unit code in Observation.valueQuantity.code = 'cm', or '[in_i]'

Mandatory: 3 elements (+4 nested mandatory elements)
Must-Support: 4 elements
Fixed Value: 3 elements

Slices

This structure defines the following Slices:

  • The element Observation.code.coding is sliced based on the values of value:code, value:system

This indicates the differences between this profile and the base Observationvitalsigns structure.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationvitalsignsFHIR Head Circumference Profile
... code 1..1CodeableConceptHead Circumference
.... Slices for coding 0..*CodingCode defined by a terminology system
Slice: Unordered, Open by value:code, value:system
..... coding:HeadCircumCode 1..1CodingCode defined by a terminology system
...... system 1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
...... code 1..1codeSymbol in syntax defined by the system
Fixed Value: 9843-4
... valueQuantity 0..1QuantityVital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
.... value S1..1decimalNumerical value (with implicit precision)
.... unit S1..1stringUnit representation
.... system S1..1uriSystem that defines coded unit form
Fixed Value: http://unitsofmeasure.org
.... code S1..1codeCoded responses from the common UCUM units for vital signs value set.
Binding: Body Length Units (required): cm | [in_i]


doco Documentation for this format icon

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Observationvitalsigns structure.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C icon0..*ObservationvitalsignsFHIR Head Circumference Profile
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: All Languages (required): IETF language tag for a human language

... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... instantiates[x] ΣTU0..1canonical(ObservationDefinition), Reference(ObservationDefinition)Instantiates FHIR ObservationDefinition
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... triggeredBy TU0..*BackboneElementTriggering observation(s)
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... observation Σ1..1Reference(Observation)Triggering observation
.... type Σ1..1codereflex | repeat | re-run
Binding: triggered Bytype (required): The type of TriggeredBy Observation.

.... reason 0..1stringReason that the observation was triggered
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy | GenomicStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: Observation Status (required)
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by value:coding.code, value:coding.system
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


.... category:VSCat S1..1CodeableConceptClassification of type of observation
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


..... id 0..1idUnique id for inter-element referencing
..... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
..... coding SΣ1..*CodingCode defined by a terminology system
...... id 0..1idUnique id for inter-element referencing
...... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
...... system SΣ1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version Σ0..1stringVersion of the system - if relevant
...... code SΣC icon1..1codeSymbol in syntax defined by the system
Fixed Value: vital-signs
...... display ΣC icon0..1stringRepresentation defined by the system
...... userSelected Σ0..1booleanIf this coding was chosen directly by the user
..... text Σ0..1stringPlain text representation of the concept
... code SΣC icon1..1CodeableConceptHead Circumference
Binding: Vital Signs (extensible): This identifies the vital sign result type. Original source C-CDA R1.1 , HITSP Vital Sign Result Type.

.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... Slices for coding Σ0..*CodingCode defined by a terminology system
Slice: Unordered, Open by value:code, value:system
..... coding:HeadCircumCode Σ1..1CodingCode defined by a terminology system
...... id 0..1idUnique id for inter-element referencing
...... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
...... system Σ1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
...... version Σ0..1stringVersion of the system - if relevant
...... code ΣC icon1..1codeSymbol in syntax defined by the system
Fixed Value: 9843-4
...... display ΣC icon0..1stringRepresentation defined by the system
...... userSelected Σ0..1booleanIf this coding was chosen directly by the user
.... text Σ0..1stringPlain text representation of the concept
... subject SΣ1..1Reference(Patient)Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... effective[x] SΣC icon1..1Often just a dateTime for Vital Signs
.... effectiveDateTimedateTime
.... effectivePeriodPeriod
... issued Σ0..1instantDate/Time this version was made available
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... Slices for value[x] SΣC icon0..1Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
Slice: Unordered, Open by type:$this
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueBooleanboolean
.... valueIntegerinteger
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
.... valueAttachmentAttachment
.... valueReferenceReference(MolecularSequence)
.... value[x]:valueQuantity SΣC icon0..1QuantityVital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
..... id 0..1idUnique id for inter-element referencing
..... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
..... value SΣ1..1decimalNumerical value (with implicit precision)
..... comparator ?!Σ0..1code< | <= | >= | > | ad - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.

..... unit SΣ1..1stringUnit representation
..... system SΣC icon1..1uriSystem that defines coded unit form
Fixed Value: http://unitsofmeasure.org
..... code SΣC icon1..1codeCoded responses from the common UCUM units for vital signs value set.
Binding: Body Length Units (required): cm | [in_i]

... dataAbsentReason SC icon0..1CodeableConceptWhy the result is missing
Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

... interpretation 0..*CodeableConceptHigh, low, normal, etc
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite C icon0..1CodeableConceptObserved body part
Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts

... bodyStructure C iconTU0..1Reference(BodyStructure)Observed body structure
... method 0..1CodeableConceptHow it was done
Binding: Observation Methods (example): Methods for simple observations.

... specimen C icon0..1Reference(Specimen | Group)Specimen used for this observation
... device 0..1Reference(Device | DeviceMetric)A reference to the device that generates the measurements or the device settings for the device
... referenceRange C icon0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C icon0..1SimpleQuantityLow Range, if relevant
.... high C icon0..1SimpleQuantityHigh Range, if relevant
.... normalValue TU0..1CodeableConceptNormal value, if relevant
Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.

.... type TU0..1CodeableConceptReference range qualifier
Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text C icon0..1markdownText based reference range in an observation
... hasMember Σ0..*Reference(QuestionnaireResponse | MolecularSequence | Vital Signs Profile)Used when reporting vital signs panel components
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | QuestionnaireResponse | MolecularSequence | Vital Signs Profile)Related resource from which the observation is made
... component SΣC icon0..*BackboneElementUsed when reporting systolic and diastolic blood pressure.
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code SΣC icon1..1CodeableConceptType of component observation (code / type)
Binding: Vital Signs (extensible): This identifies the vital sign result type. Original source C-CDA R1.1 , HITSP Vital Sign Result Type.

.... Slices for value[x] SΣC icon0..1Vital Sign Value
Slice: Unordered, Open by type:$this
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
..... valueAttachmentAttachment
..... valueReferenceReference(MolecularSequence)
..... value[x]:valueQuantity SΣ0..1QuantityVital Sign Value recorded with UCUM
Binding: Vital Signs Units (required): Commonly encountered UCUM units for recording Vital Signs.

.... dataAbsentReason SC icon0..1CodeableConceptWhy the component result is missing
Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format icon
<!-- Observationheadcircum -->doco

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- I 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- I 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- I 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <triggeredBy> I 0..* BackboneElement  <!-- I 0..* Triggering observation(s) -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <observation><!-- I 1..1 Reference(Observation) 
      Triggering observation --></observation>
  <type value="[code]"/><!-- I 1..1 reflex | repeat | re-run   -->
  <reason value="[string]"/><!-- I 0..1 Reason that the observation was triggered -->
 </triggeredBy>
 <partOf><!-- I 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- I 1..1 registered | preliminary | final | amended +   -->
 <-- category sliced by value:coding.code, value:coding.system  in the specified orderOpen-->
 <category> I 1..1 CodeableConcept  <!-- I 1..1 Classification of  type of observation -->
  <coding> I 1..* Coding  <!-- I 1..* Code defined by a terminology system -->
   <system value="[uri]"/><!-- I 1..1 Identity of the terminology system -->
   <version value="[string]"/><!-- I 0..1 Version of the system - if relevant -->
   <code value="[code]"/><!-- I 1..1 Symbol in syntax defined by the system -->
   <display value="[string]"/><!-- I 0..1 Representation defined by the system -->
   <userSelected value="[boolean]"/><!-- I 0..1 If this coding was chosen directly by the user -->
  </coding>
  <text value="[string]"/><!-- I 0..1 Plain text representation of the concept -->
 </category>
 <code> I 1..1 CodeableConcept  <!-- I 1..1 Head Circumference -->
  <-- coding sliced by value:code, value:system  in the specified orderOpen-->
  <coding> I 1..1 Coding  <!-- I 1..1 Code defined by a terminology system -->
   <system value="[uri]"/><!-- I 1..1 Identity of the terminology system -->
   <version value="[string]"/><!-- I 0..1 Version of the system - if relevant -->
   <code value="[code]"/><!-- I 1..1 Symbol in syntax defined by the system -->
   <display value="[string]"/><!-- I 0..1 Representation defined by the system -->
   <userSelected value="[boolean]"/><!-- I 0..1 If this coding was chosen directly by the user -->
  </coding>
  <text value="[string]"/><!-- I 0..1 Plain text representation of the concept -->
 </code>
 <subject><!-- I 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- I 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- I 0..1 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <effective[x]><!-- I 1..1 dateTime|Period 
     Often just a dateTime for Vital Signs --></effective[x]>
 <issued value="[instant]"/><!-- I 0..1 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <-- value[x] sliced by type:$this  in the specified orderOpen-->
 <valueQuantity> I 0..1 Quantity  <!-- I 0..1 Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. -->
  <value value="[decimal]"/><!-- I 1..1 Numerical value (with implicit precision) -->
  <comparator value="[code]"/><!-- I 0..1 < | <= | >= | > | ad - how to understand the value   -->
  <unit value="[string]"/><!-- I 1..1 Unit representation -->
  <system value="[uri]"/><!-- I 1..1 System that defines coded unit form -->
  <code value="[code]"/><!-- I 1..1 Coded responses from the common UCUM units for vital signs value set.   -->
 </valueQuantity>
 <dataAbsentReason><!-- I 0..1 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc   --></interpretation>
 <note><!-- I 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- I 0..1 CodeableConcept Observed body part   --></bodySite>
 <bodyStructure><!-- I 0..1 Reference(BodyStructure) Observed body structure --></bodyStructure>
 <method><!-- I 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- I 0..1 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 0..1 Reference(Device) 
     A reference to the device that generates the measurements or the device settings for the device --></device>
 <referenceRange> I 0..* BackboneElement  <!-- I 0..* Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 0..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[markdown]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..* Reference(QuestionnaireResponse) 
     Used when reporting vital signs panel components --></hasMember>
 <derivedFrom><!-- I 0..* Reference(DocumentReference) 
     Related resource from which the observation is made --></derivedFrom>
 <component> I 0..* BackboneElement  <!-- I 0..* Used when reporting systolic and diastolic blood pressure. -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- I 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <-- value[x] sliced by type:$this  in the specified orderOpen-->
  <valueQuantity><!-- I 0..1 Quantity Vital Sign Value recorded with UCUM   --></valueQuantity>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>
{ // Observationheadcircum
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "identifier" : [{ Identifier }], // IBusiness Identifier for observation
  // value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // IInstantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // IInstantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // IFulfills plan, proposal or order
    "triggeredBy" : [{ BackboneElement }], // ITriggering observation(s)
    "partOf" : [{ Reference(MedicationAdministration) }], // IPart of referenced event
    "status" : "<code>", // I R! registered | preliminary | final | amended +
    "category" : [ //  sliced by value:coding.code, value:coding.system  in the specified order, Open 
      { // Classification of  type of observation // I R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "coding" : [{ Coding }], // I R! Code defined by a terminology system
        "text" : "<string>" // IPlain text representation of the concept
      }
    ],
    "code" : { CodeableConcept }, // I R! Head Circumference
    "subject" : { Reference(Patient) }, // I R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "encounter" : { Reference(Encounter) }, // IHealthcare event during which this observation is made
  // value[x]: Often just a dateTime for Vital Signs. One of these 2:
    "effectiveDateTime" : "<dateTime>", // I R! Often just a dateTime for Vital Signs
    "effectivePeriod" : { Period }, // I R! Often just a dateTime for Vital Signs
    "issued" : "<instant>", // IDate/Time this version was made available
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
    "valueQuantity" : [ //  sliced by type:$this  in the specified order, Open 
      { // Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. // I
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "value" : <decimal>, // I R! Numerical value (with implicit precision)
        "comparator" : "<code>", // I< | <= | >= | > | ad - how to understand the value
        "unit" : "<string>", // I R! Unit representation
        "system" : "http://unitsofmeasure.org", // I R! 
        "code" : "<code>" // I R! Coded responses from the common UCUM units for vital signs value set.
      }
    ],
    "dataAbsentReason" : { CodeableConcept }, // IWhy the result is missing
    "interpretation" : [{ CodeableConcept }], // IHigh, low, normal, etc
    "note" : [{ Annotation }], // IComments about the observation
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "specimen" : { Reference(Specimen) }, // ISpecimen used for this observation
    "device" : { Reference(Device) }, // IA reference to the device that generates the measurements or the device settings for the device
    "referenceRange" : [{ BackboneElement }], // IProvides guide for interpretation
    "hasMember" : [{ Reference(QuestionnaireResponse) }], // IUsed when reporting vital signs panel components
    "derivedFrom" : [{ Reference(DocumentReference) }], // IRelated resource from which the observation is made
    "component" : [{ BackboneElement }], // IUsed when reporting systolic and diastolic blood pressure.
  }

This structure is derived from Observationvitalsigns.

Summary

  1. One code in Observation.code which must have
    • a fixed Observation.code.coding.system='http ://loinc.org'
    • a fixed Observation.code.coding.code= '9843-4'
    • Other additional Codings are allowed in Observation.code- e.g. more specific LOINC Codes, SNOMED CT concepts, system specific codes. All codes SHALL have a system value
  2. Either one Observation.valueQuantity or, if there is no value, one code in Observation.DataAbsentReason
    • Each Observation.valueQuantity must have:
      • One numeric value in Observation.valueQuantity.value
      • a fixed Observation.valueQuantity.system="http://unitsofmeasure.org"
      • a UCUM unit code in Observation.valueQuantity.code = 'cm', or '[in_i]'

Mandatory: 3 elements (+4 nested mandatory elements)
Must-Support: 4 elements
Fixed Value: 3 elements

Slices

This structure defines the following Slices:

  • The element Observation.code.coding is sliced based on the values of value:code, value:system

Differential View

This indicates the differences between this profile and the base Observationvitalsigns structure.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation 0..*ObservationvitalsignsFHIR Head Circumference Profile
... code 1..1CodeableConceptHead Circumference
.... Slices for coding 0..*CodingCode defined by a terminology system
Slice: Unordered, Open by value:code, value:system
..... coding:HeadCircumCode 1..1CodingCode defined by a terminology system
...... system 1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
...... code 1..1codeSymbol in syntax defined by the system
Fixed Value: 9843-4
... valueQuantity 0..1QuantityVital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
.... value S1..1decimalNumerical value (with implicit precision)
.... unit S1..1stringUnit representation
.... system S1..1uriSystem that defines coded unit form
Fixed Value: http://unitsofmeasure.org
.... code S1..1codeCoded responses from the common UCUM units for vital signs value set.
Binding: Body Length Units (required): cm | [in_i]


doco Documentation for this format icon

Snapshot View

This provides the consolidated view (aka snapshot) of the profile after applying the changes in this profile to the base Observationvitalsigns structure.

NameFlagsCard.TypeDescription & Constraintsdoco
.. Observation C icon0..*ObservationvitalsignsFHIR Head Circumference Profile
... id Σ0..1idLogical id of this artifact
... meta Σ0..1MetaMetadata about the resource
... implicitRules ?!Σ0..1uriA set of rules under which this content was created
... language 0..1codeLanguage of the resource content
Binding: All Languages (required): IETF language tag for a human language

... text 0..1NarrativeText summary of the resource, for human interpretation
... contained 0..*ResourceContained, inline Resources
... extension 0..*ExtensionAdditional content defined by implementations
... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored
... identifier Σ0..*IdentifierBusiness Identifier for observation
... instantiates[x] ΣTU0..1canonical(ObservationDefinition), Reference(ObservationDefinition)Instantiates FHIR ObservationDefinition
... basedOn Σ0..*Reference(CarePlan | DeviceRequest | ImmunizationRecommendation | MedicationRequest | NutritionOrder | ServiceRequest)Fulfills plan, proposal or order
... triggeredBy TU0..*BackboneElementTriggering observation(s)
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... observation Σ1..1Reference(Observation)Triggering observation
.... type Σ1..1codereflex | repeat | re-run
Binding: triggered Bytype (required): The type of TriggeredBy Observation.

.... reason 0..1stringReason that the observation was triggered
... partOf Σ0..*Reference(MedicationAdministration | MedicationDispense | MedicationStatement | Procedure | Immunization | ImagingStudy | GenomicStudy)Part of referenced event
... status ?!SΣ1..1coderegistered | preliminary | final | amended +
Binding: Observation Status (required)
... Slices for category S1..*CodeableConceptClassification of type of observation
Slice: Unordered, Open by value:coding.code, value:coding.system
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


.... category:VSCat S1..1CodeableConceptClassification of type of observation
Binding: Observation Category Codes (preferred): Codes for high level observation categories.


..... id 0..1idUnique id for inter-element referencing
..... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
..... coding SΣ1..*CodingCode defined by a terminology system
...... id 0..1idUnique id for inter-element referencing
...... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
...... system SΣ1..1uriIdentity of the terminology system
Fixed Value: http://terminology.hl7.org/CodeSystem/observation-category
...... version Σ0..1stringVersion of the system - if relevant
...... code SΣC icon1..1codeSymbol in syntax defined by the system
Fixed Value: vital-signs
...... display ΣC icon0..1stringRepresentation defined by the system
...... userSelected Σ0..1booleanIf this coding was chosen directly by the user
..... text Σ0..1stringPlain text representation of the concept
... code SΣC icon1..1CodeableConceptHead Circumference
Binding: Vital Signs (extensible): This identifies the vital sign result type. Original source C-CDA R1.1 , HITSP Vital Sign Result Type.

.... id 0..1idUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
.... Slices for coding Σ0..*CodingCode defined by a terminology system
Slice: Unordered, Open by value:code, value:system
..... coding:HeadCircumCode Σ1..1CodingCode defined by a terminology system
...... id 0..1idUnique id for inter-element referencing
...... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
...... system Σ1..1uriIdentity of the terminology system
Fixed Value: http://loinc.org
...... version Σ0..1stringVersion of the system - if relevant
...... code ΣC icon1..1codeSymbol in syntax defined by the system
Fixed Value: 9843-4
...... display ΣC icon0..1stringRepresentation defined by the system
...... userSelected Σ0..1booleanIf this coding was chosen directly by the user
.... text Σ0..1stringPlain text representation of the concept
... subject SΣ1..1Reference(Patient)Who and/or what the observation is about
... focus ΣTU0..*Reference(Resource)What the observation is about, when it is not about the subject of record
... encounter Σ0..1Reference(Encounter)Healthcare event during which this observation is made
... effective[x] SΣC icon1..1Often just a dateTime for Vital Signs
.... effectiveDateTimedateTime
.... effectivePeriodPeriod
... issued Σ0..1instantDate/Time this version was made available
... performer Σ0..*Reference(Practitioner | PractitionerRole | Organization | CareTeam | Patient | RelatedPerson)Who is responsible for the observation
... Slices for value[x] SΣC icon0..1Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
Slice: Unordered, Open by type:$this
.... valueQuantityQuantity
.... valueCodeableConceptCodeableConcept
.... valueStringstring
.... valueBooleanboolean
.... valueIntegerinteger
.... valueRangeRange
.... valueRatioRatio
.... valueSampledDataSampledData
.... valueTimetime
.... valueDateTimedateTime
.... valuePeriodPeriod
.... valueAttachmentAttachment
.... valueReferenceReference(MolecularSequence)
.... value[x]:valueQuantity SΣC icon0..1QuantityVital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept.
..... id 0..1idUnique id for inter-element referencing
..... extension 0..*ExtensionAdditional content defined by implementations
Slice: Unordered, Open by value:url
..... value SΣ1..1decimalNumerical value (with implicit precision)
..... comparator ?!Σ0..1code< | <= | >= | > | ad - how to understand the value
Binding: QuantityComparator (required): How the Quantity should be understood and represented.

..... unit SΣ1..1stringUnit representation
..... system SΣC icon1..1uriSystem that defines coded unit form
Fixed Value: http://unitsofmeasure.org
..... code SΣC icon1..1codeCoded responses from the common UCUM units for vital signs value set.
Binding: Body Length Units (required): cm | [in_i]

... dataAbsentReason SC icon0..1CodeableConceptWhy the result is missing
Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

... interpretation 0..*CodeableConceptHigh, low, normal, etc
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


... note 0..*AnnotationComments about the observation
... bodySite C icon0..1CodeableConceptObserved body part
Binding: SNOMED CT Body Structures (example): SNOMED CT Body site concepts

... bodyStructure C iconTU0..1Reference(BodyStructure)Observed body structure
... method 0..1CodeableConceptHow it was done
Binding: Observation Methods (example): Methods for simple observations.

... specimen C icon0..1Reference(Specimen | Group)Specimen used for this observation
... device 0..1Reference(Device | DeviceMetric)A reference to the device that generates the measurements or the device settings for the device
... referenceRange C icon0..*BackboneElementProvides guide for interpretation
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... low C icon0..1SimpleQuantityLow Range, if relevant
.... high C icon0..1SimpleQuantityHigh Range, if relevant
.... normalValue TU0..1CodeableConceptNormal value, if relevant
Binding: Observation Reference Range Normal Value Codes (extensible): Codes identifying the normal value of the observation.

.... type TU0..1CodeableConceptReference range qualifier
Binding: Observation Reference Range Meaning Codes (preferred): Code for the meaning of a reference range.

.... appliesTo 0..*CodeableConceptReference range population
Binding: Observation Reference Range Applies To Codes (example): Codes identifying the population the reference range applies to.


.... age 0..1RangeApplicable age range, if relevant
.... text C icon0..1markdownText based reference range in an observation
... hasMember Σ0..*Reference(QuestionnaireResponse | MolecularSequence | Vital Signs Profile)Used when reporting vital signs panel components
... derivedFrom Σ0..*Reference(DocumentReference | ImagingStudy | QuestionnaireResponse | MolecularSequence | Vital Signs Profile)Related resource from which the observation is made
... component SΣC icon0..*BackboneElementUsed when reporting systolic and diastolic blood pressure.
.... id 0..1stringUnique id for inter-element referencing
.... extension 0..*ExtensionAdditional content defined by implementations
.... modifierExtension ?!Σ0..*ExtensionExtensions that cannot be ignored even if unrecognized
.... code SΣC icon1..1CodeableConceptType of component observation (code / type)
Binding: Vital Signs (extensible): This identifies the vital sign result type. Original source C-CDA R1.1 , HITSP Vital Sign Result Type.

.... Slices for value[x] SΣC icon0..1Vital Sign Value
Slice: Unordered, Open by type:$this
..... valueQuantityQuantity
..... valueCodeableConceptCodeableConcept
..... valueStringstring
..... valueBooleanboolean
..... valueIntegerinteger
..... valueRangeRange
..... valueRatioRatio
..... valueSampledDataSampledData
..... valueTimetime
..... valueDateTimedateTime
..... valuePeriodPeriod
..... valueAttachmentAttachment
..... valueReferenceReference(MolecularSequence)
..... value[x]:valueQuantity SΣ0..1QuantityVital Sign Value recorded with UCUM
Binding: Vital Signs Units (required): Commonly encountered UCUM units for recording Vital Signs.

.... dataAbsentReason SC icon0..1CodeableConceptWhy the component result is missing
Binding: Data Absent Reason (extensible): Codes specifying why the result (Observation.value[x]) is missing.

.... interpretation 0..*CodeableConceptHigh, low, normal, etc
Binding: Observation Interpretation Codes (extensible): Codes identifying interpretations of observations.


.... referenceRange 0..*See referenceRange (Observation)Provides guide for interpretation of component result

doco Documentation for this format icon

XML Template

<!-- Observationheadcircum -->doco

<Observation xmlns="http://hl7.org/fhir"
>
  <!-- from Element: extension -->
 <id value="[id]"/><!-- 0..1 Logical id of this artifact -->
 <meta><!-- I 0..1 Meta Metadata about the resource --></meta>
 <implicitRules value="[uri]"/><!-- I 0..1 A set of rules under which this content was created -->
 <language value="[code]"/><!-- I 0..1 Language of the resource content   -->
 <text><!-- I 0..1 Narrative 
     Text summary of the resource, for human interpretation --></text>
 <contained><!-- 0..* Resource Contained, inline Resources --></contained>
 <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored  --></modifierExtension>
 <identifier><!-- I 0..* Identifier 
     Business Identifier for observation --></identifier>
 <instantiates[x]><!-- I 0..1 canonical|Reference(ObservationDefinition) 
     Instantiates FHIR ObservationDefinition --></instantiates[x]>
 <basedOn><!-- I 0..* Reference(CarePlan) Fulfills plan, proposal or order --></basedOn>
 <triggeredBy> I 0..* BackboneElement  <!-- I 0..* Triggering observation(s) -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <observation><!-- I 1..1 Reference(Observation) 
      Triggering observation --></observation>
  <type value="[code]"/><!-- I 1..1 reflex | repeat | re-run   -->
  <reason value="[string]"/><!-- I 0..1 Reason that the observation was triggered -->
 </triggeredBy>
 <partOf><!-- I 0..* Reference(MedicationAdministration) Part of referenced event --></partOf>
 <status value="[code]"/><!-- I 1..1 registered | preliminary | final | amended +   -->
 <-- category sliced by value:coding.code, value:coding.system  in the specified orderOpen-->
 <category> I 1..1 CodeableConcept  <!-- I 1..1 Classification of  type of observation -->
  <coding> I 1..* Coding  <!-- I 1..* Code defined by a terminology system -->
   <system value="[uri]"/><!-- I 1..1 Identity of the terminology system -->
   <version value="[string]"/><!-- I 0..1 Version of the system - if relevant -->
   <code value="[code]"/><!-- I 1..1 Symbol in syntax defined by the system -->
   <display value="[string]"/><!-- I 0..1 Representation defined by the system -->
   <userSelected value="[boolean]"/><!-- I 0..1 If this coding was chosen directly by the user -->
  </coding>
  <text value="[string]"/><!-- I 0..1 Plain text representation of the concept -->
 </category>
 <code> I 1..1 CodeableConcept  <!-- I 1..1 Head Circumference -->
  <-- coding sliced by value:code, value:system  in the specified orderOpen-->
  <coding> I 1..1 Coding  <!-- I 1..1 Code defined by a terminology system -->
   <system value="[uri]"/><!-- I 1..1 Identity of the terminology system -->
   <version value="[string]"/><!-- I 0..1 Version of the system - if relevant -->
   <code value="[code]"/><!-- I 1..1 Symbol in syntax defined by the system -->
   <display value="[string]"/><!-- I 0..1 Representation defined by the system -->
   <userSelected value="[boolean]"/><!-- I 0..1 If this coding was chosen directly by the user -->
  </coding>
  <text value="[string]"/><!-- I 0..1 Plain text representation of the concept -->
 </code>
 <subject><!-- I 1..1 Reference(Patient) 
     Who and/or what the observation is about --></subject>
 <focus><!-- I 0..* Reference(Resource) 
     What the observation is about, when it is not about the subject of record --></focus>
 <encounter><!-- I 0..1 Reference(Encounter) 
     Healthcare event during which this observation is made --></encounter>
 <effective[x]><!-- I 1..1 dateTime|Period 
     Often just a dateTime for Vital Signs --></effective[x]>
 <issued value="[instant]"/><!-- I 0..1 Date/Time this version was made available -->
 <performer><!-- I 0..* Reference(Practitioner) 
     Who is responsible for the observation --></performer>
 <-- value[x] sliced by type:$this  in the specified orderOpen-->
 <valueQuantity> I 0..1 Quantity  <!-- I 0..1 Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. -->
  <value value="[decimal]"/><!-- I 1..1 Numerical value (with implicit precision) -->
  <comparator value="[code]"/><!-- I 0..1 < | <= | >= | > | ad - how to understand the value   -->
  <unit value="[string]"/><!-- I 1..1 Unit representation -->
  <system value="[uri]"/><!-- I 1..1 System that defines coded unit form -->
  <code value="[code]"/><!-- I 1..1 Coded responses from the common UCUM units for vital signs value set.   -->
 </valueQuantity>
 <dataAbsentReason><!-- I 0..1 CodeableConcept Why the result is missing   --></dataAbsentReason>
 <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc   --></interpretation>
 <note><!-- I 0..* Annotation Comments about the observation --></note>
 <bodySite><!-- I 0..1 CodeableConcept Observed body part   --></bodySite>
 <bodyStructure><!-- I 0..1 Reference(BodyStructure) Observed body structure --></bodyStructure>
 <method><!-- I 0..1 CodeableConcept How it was done   --></method>
 <specimen><!-- I 0..1 Reference(Specimen) Specimen used for this observation --></specimen>
 <device><!-- I 0..1 Reference(Device) 
     A reference to the device that generates the measurements or the device settings for the device --></device>
 <referenceRange> I 0..* BackboneElement  <!-- I 0..* Provides guide for interpretation -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <low><!-- I 0..1 Quantity 
      Low Range, if relevant --></low>
  <high><!-- I 0..1 Quantity 
      High Range, if relevant --></high>
  <normalValue><!-- I 0..1 CodeableConcept Normal value, if relevant   --></normalValue>
  <type><!-- I 0..1 CodeableConcept Reference range qualifier   --></type>
  <appliesTo><!-- I 0..* CodeableConcept Reference range population   --></appliesTo>
  <age><!-- I 0..1 Range 
      Applicable age range, if relevant --></age>
  <text value="[markdown]"/><!-- I 0..1 Text based reference range in an observation -->
 </referenceRange>
 <hasMember><!-- I 0..* Reference(QuestionnaireResponse) 
     Used when reporting vital signs panel components --></hasMember>
 <derivedFrom><!-- I 0..* Reference(DocumentReference) 
     Related resource from which the observation is made --></derivedFrom>
 <component> I 0..* BackboneElement  <!-- I 0..* Used when reporting systolic and diastolic blood pressure. -->
  <modifierExtension><!-- I 0..* Extension  Extensions that cannot be ignored even if unrecognized  --></modifierExtension>
  <code><!-- I 1..1 CodeableConcept Type of component observation (code / type)   --></code>
  <-- value[x] sliced by type:$this  in the specified orderOpen-->
  <valueQuantity><!-- I 0..1 Quantity Vital Sign Value recorded with UCUM   --></valueQuantity>
  <dataAbsentReason><!-- I 0..1 CodeableConcept Why the component result is missing   --></dataAbsentReason>
  <interpretation><!-- I 0..* CodeableConcept High, low, normal, etc   --></interpretation>
  <referenceRange><!-- See http://hl7.org/fhir/StructureDefinition/Observation#Observation.referenceRange  Provides guide for interpretation of component result --></referenceRange>
 </component>
</Observation>

JSON Template

{ // Observationheadcircum
  // from Element: extension
    "meta" : { Meta }, // IMetadata about the resource
    "implicitRules" : "<uri>", // IA set of rules under which this content was created
    "language" : "<code>", // ILanguage of the resource content
    "text" : { Narrative }, // IText summary of the resource, for human interpretation
    "contained" : [{ Resource }], //Contained, inline Resources
    "modifierExtension" : [{ Extension }], // IExtensions that cannot be ignored
    "identifier" : [{ Identifier }], // IBusiness Identifier for observation
  // value[x]: Instantiates FHIR ObservationDefinition. One of these 2:
    "instantiatesCanonical" : "<canonical>", // IInstantiates FHIR ObservationDefinition
    "instantiatesReference" : { Reference(ObservationDefinition) }, // IInstantiates FHIR ObservationDefinition
    "basedOn" : [{ Reference(CarePlan) }], // IFulfills plan, proposal or order
    "triggeredBy" : [{ BackboneElement }], // ITriggering observation(s)
    "partOf" : [{ Reference(MedicationAdministration) }], // IPart of referenced event
    "status" : "<code>", // I R! registered | preliminary | final | amended +
    "category" : [ //  sliced by value:coding.code, value:coding.system  in the specified order, Open 
      { // Classification of  type of observation // I R! 
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "coding" : [{ Coding }], // I R! Code defined by a terminology system
        "text" : "<string>" // IPlain text representation of the concept
      }
    ],
    "code" : { CodeableConcept }, // I R! Head Circumference
    "subject" : { Reference(Patient) }, // I R! Who and/or what the observation is about
    "focus" : [{ Reference(Resource) }], // IWhat the observation is about, when it is not about the subject of record
    "encounter" : { Reference(Encounter) }, // IHealthcare event during which this observation is made
  // value[x]: Often just a dateTime for Vital Signs. One of these 2:
    "effectiveDateTime" : "<dateTime>", // I R! Often just a dateTime for Vital Signs
    "effectivePeriod" : { Period }, // I R! Often just a dateTime for Vital Signs
    "issued" : "<instant>", // IDate/Time this version was made available
    "performer" : [{ Reference(Practitioner) }], // IWho is responsible for the observation
    "valueQuantity" : [ //  sliced by type:$this  in the specified order, Open 
      { // Vital Signs value are recorded using the Quantity data type. For supporting observations such as Cuff size could use other datatypes such as CodeableConcept. // I
        // from Element: extension
        "extension" : [ //  sliced by value:url  in the specified order, Open ]
        "value" : <decimal>, // I R! Numerical value (with implicit precision)
        "comparator" : "<code>", // I< | <= | >= | > | ad - how to understand the value
        "unit" : "<string>", // I R! Unit representation
        "system" : "http://unitsofmeasure.org", // I R! 
        "code" : "<code>" // I R! Coded responses from the common UCUM units for vital signs value set.
      }
    ],
    "dataAbsentReason" : { CodeableConcept }, // IWhy the result is missing
    "interpretation" : [{ CodeableConcept }], // IHigh, low, normal, etc
    "note" : [{ Annotation }], // IComments about the observation
    "bodySite" : { CodeableConcept }, // IObserved body part
    "bodyStructure" : { Reference(BodyStructure) }, // IObserved body structure
    "method" : { CodeableConcept }, // IHow it was done
    "specimen" : { Reference(Specimen) }, // ISpecimen used for this observation
    "device" : { Reference(Device) }, // IA reference to the device that generates the measurements or the device settings for the device
    "referenceRange" : [{ BackboneElement }], // IProvides guide for interpretation
    "hasMember" : [{ Reference(QuestionnaireResponse) }], // IUsed when reporting vital signs panel components
    "derivedFrom" : [{ Reference(DocumentReference) }], // IRelated resource from which the observation is made
    "component" : [{ BackboneElement }], // IUsed when reporting systolic and diastolic blood pressure.
  }

 

Alternate definitions: Master Definition (XML, JSON), Schematron

PathNameConformanceValueSet
Observation.languageAll LanguagesrequiredAll Languages
Observation.triggeredBy.typetriggered Bytyperequiredtriggered Bytype
Observation.statusObservation StatusrequiredObservation Status
Observation.categoryObservation Category CodespreferredObservation Category Codes
Observation.categoryObservation Category CodespreferredObservation Category Codes
Observation.codeVital SignsextensibleVital Signs
Observation.value[x].comparatorQuantityComparatorrequiredQuantityComparator
Observation.value[x].codeBody Length UnitsrequiredBody Length Units
Observation.dataAbsentReasonData Absent ReasonextensibleData Absent Reason
Observation.interpretationObservation Interpretation CodesextensibleObservation Interpretation Codes
Observation.bodySiteSNOMED CT Body StructuresexampleSNOMED CT Body Structures
Observation.methodObservation MethodsexampleObservation Methods
Observation.referenceRange.normalValueObservation Reference Range Normal Value CodesextensibleObservation Reference Range Normal Value Codes
Observation.referenceRange.typeObservation Reference Range Meaning CodespreferredObservation Reference Range Meaning Codes
Observation.referenceRange.appliesToObservation Reference Range Applies To CodesexampleObservation Reference Range Applies To Codes
Observation.component.codeVital SignsextensibleVital Signs
Observation.component.value[x]Vital Signs UnitsrequiredVital Signs Units
Observation.component.dataAbsentReasonData Absent ReasonextensibleData Absent Reason
Observation.component.interpretationObservation Interpretation CodesextensibleObservation Interpretation Codes
. .