http://hl7.org/fhir/StructureDefinition/condition-diseaseCourse|5.2.0

The clinical course of the disease (how the disease behaves over time), such as acute versus chronic.
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/CodeableConcept
Extension.value[x].binding.valueSethttp://hl7.org/fhir/ValueSet/condition-course