description: This field contains the nature of the abnormal test. This is represented in v2 as OBX-10 Nature of abnormal test (ID) 00578.
package_name: hl7.fhir.uv.extensions.r3
derivation: constraint
name: ObsNatureAbnormal
type: Extension
elements:
  extension: {index: 0}
  url:
    pattern: {type: Uri, value: 'http://hl7.org/fhir/StructureDefinition/observation-nature-of-abnormal-test'}
    index: 1
  value:
    choices: [valueCodeableConcept]
    index: 3
  valueCodeableConcept: {type: CodeableConcept, choiceOf: value, index: 4}
package_version: 5.3.0-ballot-tc1
extensions: {}
class: extension
kind: complex-type
url: http://hl7.org/fhir/StructureDefinition/observation-nature-of-abnormal-test
base: http://hl7.org/fhir/StructureDefinition/Extension
version: 5.3.0-ballot-tc1
required: [value, valueCodeableConcept]