STU3 Candidate

This page is part of the FHIR Specification (v1.8.0: STU 3 Draft). The current version which supercedes this version is 5.0.0 . For a full list of available versions, see the Directory of published versions

Extension: FHIR Path version of constraint

(No assigned work group)   Maturity Level : 0 Context: Any

URL for this extension: 


http://hl7.org/fhir/StructureDefinition/structuredefinition-expression

Status: draft. Extension maintained by: Health Level Seven, Inc. - [WG Name] WG

The constraint as specified using FHIRPath language.

Context of Use: Use on data type: ElementDefinition.constraint

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

Extension Content

Summary

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 string URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-expression
FHIR Path version of constraint: The constraint as specified using FHIRPath language.
Use on data type: ElementDefinition.constraint

doco Documentation for this format

Fulle Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-expression
FHIR Path version of constraint: The constraint as specified using FHIRPath language.
Use on data type: ElementDefinition.constraint
. . . extension 0 .. 0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/structuredefinition-expression"
. . . valueString 1..1 string Value of extension

doco Documentation for this format

XML Template 

<!-- FHIR Path version of constraint -->doco

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

JSON Template 

{ // FHIR Path version of constraint
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-expression", // R! 
    "valueString" : "<string>" // R! Value of extension
  }

Summary

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 string URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-expression
FHIR Path version of constraint: The constraint as specified using FHIRPath language.
Use on data type: ElementDefinition.constraint

doco Documentation for this format

Full Structure

Name Flags Card. Type Description & Constraints doco
. . extension 0..1 Extension URL = http://hl7.org/fhir/StructureDefinition/structuredefinition-expression
FHIR Path version of constraint: The constraint as specified using FHIRPath language.
Use on data type: ElementDefinition.constraint
. . . extension 0 .. 0
. . . url 1..1 uri "http://hl7.org/fhir/StructureDefinition/structuredefinition-expression"
. . . valueString 1..1 string Value of extension

doco Documentation for this format

XML Template 

<!-- FHIR Path version of constraint -->doco

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

JSON Template 

{ // FHIR Path version of constraint
  // from Element: extension
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-expression", // R! 
    "valueString" : "<string>" // 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')]) )