R4 Draft for Comment

This page is part of the FHIR Specification (v3.2.0: R4 Ballot 1). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R4B R4 R3 R2

Extension: observation

Patient Care Work Group

Maturity Level: 1

Informative

Use Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation

Status: draft. Extension maintained by: Health Level Seven International (Clinical Genomics)

Allows capturing risk-relevant observations about the relative that aren't themselves a specific health condition; e.g. Certain ethnic ancestries that are disease-relevant, presence of particular genetic markers, etc.

Context of Use: Use on element: FamilyMemberHistory

usage info: insert a list of places where this extension is used

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..*	Reference(Observation)	URL = http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation observation: Allows capturing risk-relevant observations about the relative that aren't themselves a specific health condition; e.g. Certain ethnic ancestries that are disease-relevant, presence of particular genetic markers, etc. Use on element: FamilyMemberHistory
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation observation: Allows capturing risk-relevant observations about the relative that aren't themselves a specific health condition; e.g. Certain ethnic ancestries that are disease-relevant, presence of particular genetic markers, etc. Use on element: FamilyMemberHistory
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation"
valueReference	0..1	Reference(Observation)	Value of extension
Documentation for this format

XML Template

<!-- observation -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation" >
  <!-- from Element: extension -->
 <valueReference><!-- 0..1 Reference(Observation) Value of extension --></valueReference>
</extension>

JSON Template

{ // observation
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation", // R! 
    "valueReference" : { Reference(Observation) } //Value of extension
  }

Summary

Name	Flags	Card.	Type	Description & Constraints
extension		0..*	Reference(Observation)	URL = http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation observation: Allows capturing risk-relevant observations about the relative that aren't themselves a specific health condition; e.g. Certain ethnic ancestries that are disease-relevant, presence of particular genetic markers, etc. Use on element: FamilyMemberHistory
Documentation for this format

Full Structure

Name	Card.	Type	Description & Constraints
extension	0..*	Extension	URL = http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation observation: Allows capturing risk-relevant observations about the relative that aren't themselves a specific health condition; e.g. Certain ethnic ancestries that are disease-relevant, presence of particular genetic markers, etc. Use on element: FamilyMemberHistory
url	1..1	uri	"http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation"
valueReference	0..1	Reference(Observation)	Value of extension
Documentation for this format

XML Template

<!-- observation -->

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation" >
  <!-- from Element: extension -->
 <valueReference><!-- 0..1 Reference(Observation) Value of extension --></valueReference>
</extension>

JSON Template

{ // observation
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/family-member-history-genetics-observation", // R! 
    "valueReference" : { Reference(Observation) } //Value of extension
  }

Constraints

ele-1: All FHIR elements must have a @value or children (xpath: @value|f:*|h:div)
ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))