HL7 Terminology
1.0.0 - Publication

This page is part of the HL7 Terminology (v1.0.0: Release) based on FHIR R4. The current version which supercedes this version is 5.2.0. For a full list of available versions, see the Directory of published versions



Defining URL:http://terminology.hl7.org/ValueSet/v2-0960

Used to specify why the normally expected content of the data element is missing.

Publisher:HL7, Inc
OID:2.16.840.1.113883.4.642.3.5 (for OID based terminology systems)

Copyright HL7. Licensed under creative commons public domain

Source Resource:XML / JSON / Turtle


This value set is not used

Content Logical Definition

Logical Definition (CLD)



This value set contains 15 concepts

All codes from system http://terminology.hl7.org/CodeSystem/data-absent-reason

unknownUnknownThe value is expected to exist but is not known.
asked-unknownAsked But UnknownThe source was asked but does not know the value.
temp-unknownTemporarily UnknownThere is reason to expect (from the workflow) that the value may become known.
not-askedNot AskedThe workflow didn't lead to this value being known.
asked-declinedAsked But DeclinedThe source was asked but declined to answer.
maskedMaskedThe information is not available due to security, privacy or related reasons.
not-applicableNot ApplicableThere is no proper value for this element (e.g. last menstrual period for a male).
unsupportedUnsupportedThe source system wasn't capable of supporting this element.
as-textAs TextThe content of the data is represented in the resource narrative.
errorErrorSome system or workflow process error means that the information is not available.
not-a-numberNot a Number (NaN)The numeric value is undefined or unrepresentable due to a floating point processing error.
negative-infinityNegative Infinity (NINF)The numeric value is excessively low and unrepresentable due to a floating point processing error.
positive-infinityPositive Infinity (PINF)The numeric value is excessively high and unrepresentable due to a floating point processing error.
not-performedNot PerformedThe value is not available because the observation procedure (test, etc.) was not performed.
not-permittedNot PermittedThe value is not permitted in this context (e.g. due to profiles, or the base data types).

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
Source The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance)
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code


2020-05-06reviseTed KleinVocabulary WGMigrated to the UTG maintenance environment and publishing tooling.