http://hl7.org/fhir/StructureDefinition/cqf-modelInfo-label|5.2.0

Specifies the label for the class constructed in the model info for the profile (i.e. an alternative, user-friendly name that can be used as the identifier for the class in CQL expressions).
element_idtypes
Extension
Extension.url
Extension.value[x]
Extension
Extension.id
Extension.extension
Extension.url
Extension.value[x]