description: For requisitions this extension is used to convey the ServiceRequest.requisition identifier in the message header.
package_name: ca.on.oh-ereferral-econsult
derivation: constraint
name: ReferralIdentifier
type: Extension
elements:
  url:
    pattern: {type: Uri, value: 'http://ehealthontario.ca/fhir/StructureDefinition/ext-referral-identifier'}
    index: 0
  value:
    choices: [valueIdentifier]
    index: 2
  valueIdentifier: {type: Identifier, choiceOf: value, index: 3}
package_version: 0.11.0-alpha1.0.6
class: extension
kind: complex-type
url: http://ehealthontario.ca/fhir/StructureDefinition/ext-referral-identifier
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 0.10.1
required: [valueIdentifier, value]