Release 4B

This page is part of the FHIR Specification (v4.3.0: R4B - STU). 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

Extension: concept-comments

Vocabulary Work Group Maturity Level: 1InformativeUse Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments

Status: draft. Extension maintained by: HL7

A comment that explains how this code is used in this context (where the value set is expected to be used).

Comment:

This is used in various FHIR value sets to make comments on how particular codes are used when the formal definition is a little abstract or vague, but it's not clear whether it belongs in the actual value set resource.

Context of Use: Use on Element ID CodeSystem.concept

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. concept-comments0..1stringURL = http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments
concept-comments: A comment that explains how this code is used in this context (where the value set is expected to be used).


Use on Element ID CodeSystem.concept

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments
concept-comments: A comment that explains how this code is used in this context (where the value set is expected to be used).


Use on Element ID CodeSystem.concept
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments"
... value[x] 1..1stringValue of extension

doco Documentation for this format

XML Template

<!-- concept-comments -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!-- ?? 1..1 Value of extension -->
</extension>

JSON Template

{ // concept-comments
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments", // R! 
    "valueString" : "<string>" // C? R! Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. concept-comments0..1stringURL = http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments
concept-comments: A comment that explains how this code is used in this context (where the value set is expected to be used).


Use on Element ID CodeSystem.concept

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments
concept-comments: A comment that explains how this code is used in this context (where the value set is expected to be used).


Use on Element ID CodeSystem.concept
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments"
... value[x] 1..1stringValue of extension

doco Documentation for this format

XML Template

<!-- concept-comments -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments" >
  <!-- from Element: extension -->
 <valueString value="[string]"/><!-- ?? 1..1 Value of extension -->
</extension>

JSON Template

{ // concept-comments
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments", // R! 
    "valueString" : "<string>" // C? R! Value of extension
  }

 

Constraints

  • ele-1: All FHIR elements must have a @value or children unless an empty Parameters resource (xpath: @value|f:*|h:div|self::f:Parameters)
  • ext-1: Must have either extensions or value[x], not both (xpath: exists(f:extension)!=exists(f:*[starts-with(local-name(.), 'value')]))
  • ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: @value|f:*|h:div)
  • ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: exists(f:extension)!=exists(f:*[starts-with(local-name(.), "value")]))
  • ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: @value|f:*|h:div)