description: Endpoint Access Control Mechanism package_name: hl7.fhir.us.davinci-pdex derivation: constraint name: EndpointAccessControlMechanism type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-endpointAccessControlMechanism'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 2.0.0 extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/us/davinci-pdex/StructureDefinition/base-ext-endpointAccessControlMechanism base: http://hl7.org/fhir/StructureDefinition/Extension version: 2.0.0 required: [value, valueCodeableConcept]