http://hl7.org/fhir/StructureDefinition/observation-nature-of-abnormal-test|5.2.0

This field contains the nature of the abnormal test. This is represented in v2 as OBX-10 Nature of abnormal test (ID) 00578.

element_id	types
Extension
Extension.extension
Extension.url
Extension.value[x]	CodeableConcept
Extension
Extension.id	http://hl7.org/fhirpath/System.String
Extension.extension	Extension
Extension.url	http://hl7.org/fhirpath/System.String
Extension.value[x]	CodeableConcept