description: The reporting laboratory may amend the value in this field regardless of whether a result has been recorded for the test request. package_name: ca.on.ehr.r4 derivation: constraint name: PointOfCareTestID type: Extension elements: url: pattern: {type: Uri, value: 'http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-poc-test-id'} index: 0 value: pattern: {type: String, value: PORT} mustSupport: true choices: [valueString] index: 2 valueString: type: string pattern: {type: String, value: PORT} mustSupport: true choiceOf: value index: 3 package_version: 1.0.0-snapshot2 class: extension kind: complex-type url: http://ehealthontario.ca/fhir/StructureDefinition/ca-on-lab-ext-poc-test-id base: http://hl7.org/fhir/StructureDefinition/Extension version: null