http://hl7.org/fhir/StructureDefinition/valueset-systemRef|4.0.1

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

Structure JSON Dependencies FHIRSchema Other Versions Dependant (0)Elements Summary

description: The formal URI for the code system.  I.e. ValueSet.codeSystem.system (or its equivalent).
derivation: constraint
name: systemRef
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/valueset-systemRef'}
    index: 1
  value:
    choices: []
    index: 3
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/valueset-systemRef
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 4.0.1
required: [value]