description: The type of user initiating the request, e.g. patient, healthcare provider, or specific type of healthcare provider (physician, nurse, etc.). package_name: hl7.fhir.r5.core derivation: constraint name: systemUserType type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/cqf-systemUserType'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 4.4.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/cqf-systemUserType base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.4.0 required: [value, valueCodeableConcept]