description: Location where the information being requested to be communicated happened. package_name: hl7.fhir.r5.core derivation: constraint name: initiatingLocation type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/communicationrequest-initiatingLocation'} index: 1 value: choices: [valueReference] index: 3 valueReference: type: Reference choiceOf: value refers: ['http://hl7.org/fhir/StructureDefinition/Location'] index: 4 package_version: 4.2.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/communicationrequest-initiatingLocation base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.2.0 required: [valueReference, value]