FHIR Release 3 (STU) Current Build

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: Element ID ValueSet.compose.include

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

Extension Content

Summary

Name Flags Card. Type Description & Constraints doco
. . extension 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: 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: Element ID ValueSet.compose.include
. . . extension 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/valueset-systemRef"
. . . valueUri 0..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]"/><!-- 0..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>" //Value of extension

  }

Summary

Name Flags Card. Type Description & Constraints doco
. . extension 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: 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: Element ID ValueSet.compose.include
. . . extension 0..0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/valueset-systemRef"
. . . valueUri 0..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]"/><!-- 0..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>" //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')]) )