http://hl7.org/fhir/StructureDefinition/cqf-encounterClass|4.0.1

The class of encounter (inpatient, outpatient, etc.).
typedestination
baseDefinitionhttp://hl7.org/fhir/StructureDefinition/Extension
typehttp://hl7.org/fhir/StructureDefinition/Extension
Extension.value[x].typehttp://hl7.org/fhir/StructureDefinition/CodeableConcept