description: The clinical course of the disease (how the disease behaves over time), such as acute versus chronic. package_name: hl7.fhir.uv.extensions derivation: constraint name: ConditionDiseaseCourse type: Extension elements: extension: {index: 0} url: pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/condition-diseaseCourse'} index: 1 value: choices: [valueCodeableConcept] index: 3 valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4} package_version: 5.3.0-ballot-tc extensions: {} class: extension kind: complex-type url: http://hl7.org/fhir/StructureDefinition/condition-diseaseCourse base: http://hl7.org/fhir/StructureDefinition/Extension version: 5.3.0-ballot-tc required: [value, valueCodeableConcept]