FHIR Release 3 (STU) CI-Build

This page is part of the FHIR Specification (v3.0.2: STU 3). The current version which supercedes this version is 5.0.0 . For a full list Continuous Integration Build of available versions, see FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions icon . Page versions: R5 R4B R4 R3 R2

Using Codes Code Systems Value Sets Concept Maps Identifier Systems

4.3.1.5 4.4.1.605 Value Set ValueSet http://hl7.org/fhir/ValueSet/data-absent-reason

  Maturity Level : 0
Vocabulary Responsible Owner: FHIR Infrastructure icon Work Group Informative Normative (from v4.0.0) Use Context : Any Country: World
This is a value set defined by the FHIR project. Summary OID:
Official URL : Committee: http://hl7.org/fhir/ValueSet/data-absent-reason Work Group Version : 6.0.0-ballot3
active as of 2022-12-12 2.16.840.1.113883.4.642.3.5 (for OID based terminology systems) Computable Name : DataAbsentReason
Source Resource Flags : Immutable XML / JSON OID : 2.16.840.1.113883.4.642.3.5

This value set is used in the following places:

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


This value set includes codes from the following code systems:

Generated Narrative: ValueSet data-absent-reason

Last updated: 2025-11-09T13:03:16.847+11:00

 

This expansion generated 19 Apr 2017 09 Nov 2025


ValueSet This value set contains 10 concepts

Expansion performed internally based on http://hl7.org/fhir/data-absent-reason version 3.0.2 All codes from system http://hl7.org/fhir/data-absent-reason codesystem DataAbsentReason v1.0.0 (CodeSystem) icon

This value set contains 15 concepts

The value is not known. The source system wasn't capable of supporting this element. The content of the data is represented in the resource narrative. Some system or workflow process error means that the information is not available.
Code Level Display System Code Definition Display
1 http://terminology.hl7.org/CodeSystem/data-absent-reason    unknown icon Unknown
2 asked http://terminology.hl7.org/CodeSystem/data-absent-reason      asked-unknown icon Asked The source human does not know the value. Asked But Unknown
2 temp http://terminology.hl7.org/CodeSystem/data-absent-reason      temp-unknown icon Temp There is reason to expect (from the workflow) that the value may become known. Temporarily Unknown
2 http://terminology.hl7.org/CodeSystem/data-absent-reason      not-asked icon Not Asked
The workflow didn't lead to this value being known. 2 http://terminology.hl7.org/CodeSystem/data-absent-reason      asked-declined icon Asked But Declined
1 http://terminology.hl7.org/CodeSystem/data-absent-reason    masked icon Masked
The information is not available due to security, privacy or related reasons. 1 http://terminology.hl7.org/CodeSystem/data-absent-reason    not-applicable icon Not Applicable
1 http://terminology.hl7.org/CodeSystem/data-absent-reason    unsupported icon Unsupported
1 astext http://terminology.hl7.org/CodeSystem/data-absent-reason    as-text icon As Text
1 http://terminology.hl7.org/CodeSystem/data-absent-reason    error icon Error
   NaN 2 http://terminology.hl7.org/CodeSystem/data-absent-reason      not-a-number icon Not a Number (NaN)
NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value. 2 http://terminology.hl7.org/CodeSystem/data-absent-reason      negative-infinity icon Negative Infinity (NINF)
2 http://terminology.hl7.org/CodeSystem/data-absent-reason      positive-infinity icon Positive Infinity (PINF)
1 http://terminology.hl7.org/CodeSystem/data-absent-reason    not-performed icon Not Performed
The value is not available because the observation procedure (test, etc.) was not performed. 1 http://terminology.hl7.org/CodeSystem/data-absent-reason    not-permitted icon Not Permitted

 

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


Explanation of the columns that may appear on this page:

Level Lvl A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes For value sets, levels are under other codes, and imply that the mostly used to organize codes for user convenience, but may follow code they are under also applies system hierarchy - see Code System for further information
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). If the code is in italics, this indicates that the code is not selectable ('Abstract')
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