This is the CodeSystem that contains codes in both ObservationreferenceRangeNormalValue (http://terminology.hl7.org/CodeSystem/observation-referencerange-normalvalue) and ObservationreferenceRangeNormalValue (http://terminology.hl7.org/CodeSystem/observation-referencerange-normalvalue).
Generated Narrative: CodeSystem 209ef897-e0c1-42aa-924c-4a2591583ab9-729
This code system http://hl7.org/fhir/comparison/CodeSystem/209ef897-e0c1-42aa-924c-4a2591583ab9-729 defines codes, but no codes are represented here
| Code | Display | Definition |
| negative | Negative | The expected normal value for the observation is negative. |
| absent | Absent | The expected normal value for the observation is absent. |