description: Indicates the types of named events to subscribe to from the EHR. package_name: hl7.fhir.us.medmorph derivation: constraint name: USPublicHealthNamedEventTypeExtension type: Extension elements: url: type: uri pattern: {type: Uri, value: 'http://hl7.org/fhir/us/medmorph/StructureDefinition/us-ph-named-eventtype'} index: 0 value: short: The set of named events that can be used for subscriptions choices: [valueCodeableConcept] index: 2 valueCodeableConcept: {type: CodeableConcept, short: The set of named events that can be used for subscriptions, choiceOf: value, index: 3} package_version: 1.0.0 class: extension kind: complex-type url: http://hl7.org/fhir/us/medmorph/StructureDefinition/us-ph-named-eventtype base: http://hl7.org/fhir/StructureDefinition/Extension version: 1.0.0 required: [value, valueCodeableConcept]