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1.22.2.1.1557 Value Set http://hl7.org/fhir/vs/observation-valueabsentreason

This is a value set defined by the FHIR project.

Codes specifying why the result (Observation.value[x]) is missing

Detailed Descriptions: XML or JSON .

This value set contains 8 concepts

1.22.2.1.1557.1 Observation Value Absent Reason

This value set defines the set of code for identifying the reason why the expected result in Observation.value[x] is missing.

This value set defines its own terms in the system http://hl7.org/fhir/data-absent-reason

Code Display Definition
unknown Unknown The value is not known
asked Asked The source human does not know the value
temp Temp There is reason to expect (from the workflow) that the value may become known
notasked Not Asked The workflow didn't lead to this value being known
masked Masked The information is not available due to security, privacy or related reasons
unsupported Unsupported The source system wasn't capable of supporting this element
astext As Text The content of the data is represented in the resource narrative
error Error Some system or workflow process error means that the information is not available

This value set is used in the following places:

The OID for the value set is 2.16.840.1.113883.4.642.2.1557 (OIDs are not used in FHIR, but may be used in v3, or OID based terminology systems).

See the full registry of value sets defined as part of FHIR.