description: The method used to perform this procedure. package_name: hl7.fhir.r5.core derivation: constraint name: method type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/procedure-method'} 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/procedure-method base: http://hl7.org/fhir/StructureDefinition/Extension version: 4.4.0 required: [value, valueCodeableConcept]