description: This extension allows additional identifiers to be included under ServiceRequest.performer and ServiceRequest.identifier package_name: ca.infoway.io.erec derivation: constraint name: PerformerIdentifier type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-performer-identifier-EXT'} index: 1 value: choices: [valueIdentifier] index: 3 valueIdentifier: {type: Identifier, choiceOf: value, index: 4} value[x]: elements: type: mustSupport: true index: 5 elements: coding: mustSupport: true index: 6 elements: system: {mustSupport: true, index: 7} code: {mustSupport: true, index: 8} display: {mustSupport: true, index: 9} system: {mustSupport: true, index: 10} value: {mustSupport: true, index: 11} package_version: 1.1.0-dft-ballot extensions: {} class: extension kind: complex-type url: http://fhir.infoway-inforoute.ca/io/CA-eReC/StructureDefinition/CA-eReC-performer-identifier-EXT base: http://hl7.org/fhir/StructureDefinition/Extension version: null