Release 4 5 Preview #1

This page is part of the FHIR Specification (v4.0.1: R4 - Mixed Normative and STU ) in it's permanent home (it will always be available at this URL). (v4.2.0: R5 Preview #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: systemRef

Vocabulary Work Group   Maturity Level : 1 Informative Use Context : Any

URL for this extension: 


http://hl7.org/fhir/StructureDefinition/valueset-systemRef

Status: draft. Extension maintained by: HL7

The formal URI for the code system. I.e. ValueSet.codeSystem.system (or its equivalent).

Context of Use: Use on Element ID ValueSet.compose.include

Extension Content

Summary

Name Flags Card. Type Description & Constraints doco
. . systemRef 0..1 uri URL = http://hl7.org/fhir/StructureDefinition/valueset-systemRef
systemRef: The formal URI for the code system. I.e. ValueSet.codeSystem.system (or its equivalent).


Use on Element ID ValueSet.compose.include

doco Documentation for this format

Full Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = http://hl7.org/fhir/StructureDefinition/valueset-systemRef
systemRef: The formal URI for the code system. I.e. ValueSet.codeSystem.system (or its equivalent).


Use on Element ID ValueSet.compose.include
. . . extension I 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/valueset-systemRef"
. . . value[x] I 1..1 uri Value of extension

doco Documentation for this format

XML Template 

<!-- systemRef -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-systemRef" >
  <!-- from Element: extension -->
 <

 <valueUri value="[uri]"/><!-- ?? 1..1 Value of extension -->

</extension>

JSON Template 

{ // systemRef
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-systemRef", // R! 
    "

    "valueUri" : "<uri>" // C? R! Value of extension

  }

Summary

Name Flags Card. Type Description & Constraints doco
. . systemRef 0..1 uri URL = http://hl7.org/fhir/StructureDefinition/valueset-systemRef
systemRef: The formal URI for the code system. I.e. ValueSet.codeSystem.system (or its equivalent).


Use on Element ID ValueSet.compose.include

doco Documentation for this format

Full Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = http://hl7.org/fhir/StructureDefinition/valueset-systemRef
systemRef: The formal URI for the code system. I.e. ValueSet.codeSystem.system (or its equivalent).


Use on Element ID ValueSet.compose.include
. . . extension I 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/valueset-systemRef"
. . . value[x] I 1..1 uri Value of extension

doco Documentation for this format

XML Template 

<!-- systemRef -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/valueset-systemRef" >
  <!-- from Element: extension -->
 <

 <valueUri value="[uri]"/><!-- ?? 1..1 Value of extension -->

</extension>

JSON Template 

{ // systemRef
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/valueset-systemRef", // R! 
    "

    "valueUri" : "<uri>" // C? R! 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')]) )
  • 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 )