This page is part of the FHIR Specification (v1.4.0: STU 3 Ballot 3). The current version which supercedes this version is 5.0.0. For a full list of available versions, see the Directory of published versions . Page versions: R3 R2
This is a value set defined by the FHIR project.
Summary
Defining URL: | http://hl7.org/fhir/ValueSet/observation-valueabsentreason |
Name: | Observation Value Absent Reason |
Definition: | This value set defines the set of codes for identifying the reason why the expected result in Observation.value[x] is missing. |
Committee: | Orders and Observations Work Group |
OID: | 2.16.840.1.113883.4.642.2.221 (for OID based terminology systems) |
Source Resource | XML / JSON |
This value set is used in the following places:
This value set includes codes from the following code systems:
This expansion generated 31 Mar 2016
This value set contains 9 concepts
All codes from 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. |
not-asked | 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. |
NaN | Not a Number | NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value. |
This value set includes codes from the following code systems:
See the full registry of value sets defined as part of FHIR.
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 |