description: The details of the service being requested. package_name: hl7.fhir.us.davinci-pas derivation: constraint name: RequestedService type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-requestedService'} index: 1 value: choices: [valueReference] index: 3 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/us/davinci-pas/StructureDefinition/profile-devicerequest', 'http://hl7.org/fhir/us/davinci-pas/StructureDefinition/profile-medicationrequest', 'http://hl7.org/fhir/us/davinci-pas/StructureDefinition/profile-nutritionorder', 'http://hl7.org/fhir/us/davinci-pas/StructureDefinition/profile-servicerequest'] index: 4 package_version: 2.1.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-pas/StructureDefinition/extension-requestedService base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.1.0