This value set defines the set of codes for identifying the reason why the expected result in Observation.value[x] is missing.
The project FHIR API endpoint is not yet available for DSTU2 FHIR version.
The global FHIR API endpoint is not yet available for DSTU2 FHIR version.
This resource matches a canonical claim from this project.
Claim: http://hl7.org/
Canonical claims are used to verify ownership of your canonical URLs.