description: For requisitions this extension is used to convey the ServiceRequest.requisition identifier in the message header.
package_name: ca.infoway.io.erec
derivation: constraint
name: ReferralIdentifier
type: Extension
elements:
  url:
    pattern: {type: Uri, value: 'https://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/Referral-Identifier-EXT'}
    index: 0
  value:
    choices: [valueIdentifier]
    index: 2
  valueIdentifier: {type: Identifier, choiceOf: value, index: 3}
package_version: 1.0.0-dft-ballot
class: extension
kind: complex-type
url: https://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/Referral-Identifier-EXT
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.1.0
required: [valueIdentifier, value]