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Extension: changeBase

FHIR Infrastructure Work Group Maturity Level: 1InformativeUse Context: Any

URL for this extension:

http://hl7.org/fhir/StructureDefinition/list-changeBase

Status: draft. Extension maintained by: HL7

Reference to the List that a "change" list is asserting changes with respect to.

Comment:

Only for mode = changes.

Context of Use: Use on Element ID List, with Context Invariant = mode = 'changes'

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. changeBase0..1Reference(List)URL = http://hl7.org/fhir/StructureDefinition/list-changeBase
changeBase: Reference to the List that a "change" list is asserting changes with respect to.


Use on Element ID List, with <a href="structuredefinition-definitions.html#StructureDefinition.contextInvariant">Context Invariant</a> = <code>mode = 'changes'</code>

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/list-changeBase
changeBase: Reference to the List that a &quot;change&quot; list is asserting changes with respect to.


Use on Element ID List, with <a href="structuredefinition-definitions.html#StructureDefinition.contextInvariant">Context Invariant</a> = <code>mode = 'changes'</code>
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/list-changeBase"
... valueReference 0..1Reference(List)Value of extension

doco Documentation for this format

XML Template

<!-- changeBase -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/list-changeBase" >
  <!-- from Element: extension -->
 <valueReference><!-- 0..1 Reference(List) Value of extension --></valueReference>
</extension>

JSON Template

{ // changeBase
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/list-changeBase", // R! 
    "valueReference" : { Reference(List) } //Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. changeBase0..1Reference(List)URL = http://hl7.org/fhir/StructureDefinition/list-changeBase
changeBase: Reference to the List that a &quot;change&quot; list is asserting changes with respect to.


Use on Element ID List, with <a href="structuredefinition-definitions.html#StructureDefinition.contextInvariant">Context Invariant</a> = <code>mode = 'changes'</code>

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/list-changeBase
changeBase: Reference to the List that a &quot;change&quot; list is asserting changes with respect to.


Use on Element ID List, with <a href="structuredefinition-definitions.html#StructureDefinition.contextInvariant">Context Invariant</a> = <code>mode = 'changes'</code>
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/list-changeBase"
... valueReference 0..1Reference(List)Value of extension

doco Documentation for this format

XML Template

<!-- changeBase -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/list-changeBase" >
  <!-- from Element: extension -->
 <valueReference><!-- 0..1 Reference(List) Value of extension --></valueReference>
</extension>

JSON Template

{ // changeBase
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
    "url" : "http://hl7.org/fhir/StructureDefinition/list-changeBase", // R! 
    "valueReference" : { Reference(List) } //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')]))