Snapshot 3: Connectathon 32 Base

This is Snapshot #3 for FHIR R5, released to support Connectathon 32. For a full list of available versions, see the Directory of published versions.

Extension: pattern

FHIR Infrastructure Work Group Maturity Level: 1Trial UseUse Context: Any
Official URL: http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern Version: 5.0.0-snapshot3
draft as of 2015-02-28 Computable Name: pattern
Flags: Non-Modifier OID: TBD

Context of Use: Use on Element ID ElementDefinition.type

Definition

A pattern that all the target resources follow - that is, a pattern that they all declare their relationship to.

Extension Content

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. pattern0..1canonical(StructureDefinition)URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern
pattern: A pattern that all the target resources follow - that is, a pattern that they all declare their relationship to.


Use on Element ID ElementDefinition.type

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern
pattern: A pattern that all the target resources follow - that is, a pattern that they all declare their relationship to.


Use on Element ID ElementDefinition.type
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern"
... value[x] 1..1canonical(StructureDefinition)Value of extension

doco Documentation for this format

XML Template

<!-- pattern -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern" >
  <!-- from Element: extension -->
 <valueCanonical value="[canonical]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // pattern
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern", // R! 
    "valueCanonical" : "<canonical>" // I R! Value of extension
  }

Summary

NameFlagsCard.TypeDescription & Constraintsdoco
.. pattern0..1canonical(StructureDefinition)URL = http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern
pattern: A pattern that all the target resources follow - that is, a pattern that they all declare their relationship to.


Use on Element ID ElementDefinition.type

doco Documentation for this format

Full Structure

NameFlagsCard.TypeDescription & Constraintsdoco
.. extension0..1ExtensionURL = http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern
pattern: A pattern that all the target resources follow - that is, a pattern that they all declare their relationship to.


Use on Element ID ElementDefinition.type
... extension 0..0
... url 1..1uri"http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern"
... value[x] 1..1canonical(StructureDefinition)Value of extension

doco Documentation for this format

XML Template

<!-- pattern -->doco

<extension xmlns="http://hl7.org/fhir"
     url="http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern" >
  <!-- from Element: extension -->
 <valueCanonical value="[canonical]"/><!-- I 1..1 Value of extension -->
</extension>

JSON Template

{ // pattern
  // from Element: extension
    "extension" : [ //  sliced by value:url  in the specified order, Open ]
  // extension: Extension: Prohibited
    "url" : "http://hl7.org/fhir/StructureDefinition/elementdefinition-pattern", // R! 
    "valueCanonical" : "<canonical>" // I R! Value of extension
  }

 

Constraints

  • ele-1: All FHIR elements must have a @value or children (xpath: hasValue() or (children().count() > id.count()))
  • ext-1: Must have either extensions or value[x], not both (xpath: extension.exists() != value.exists())
  • ele-1: On Extension.extension: All FHIR elements must have a @value or children (xpath on Extension.extension: hasValue() or (children().count() > id.count()))
  • ext-1: On Extension.extension: Must have either extensions or value[x], not both (xpath on Extension.extension: extension.exists() != value.exists())
  • ele-1: On Extension.value[x]: All FHIR elements must have a @value or children (xpath on Extension.value[x]: hasValue() or (children().count() > id.count()))

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Examples of this extension