R4 Draft for Comment

This page is part of the FHIR Specification (v3.2.0: R4 Ballot 1). 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

4.3.1.402 Value Set http://hl7.org/fhir/ValueSet/observation-valueabsentreason

Orders and Observations Work Group Maturity Level: 5Normative Use Context: Not Intended for Production use

Normative Candidate Note: This page is candidate normative content for R4 in the Observation Package. Once normative, it will lose it's Maturity Level, and breaking changes will no longer be made.

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:2.16.840.1.113883.4.642.3.402 (for OID based terminology systems)
Source ResourceXML / JSON

This value set is used in the following places:

4.3.1.402.1 Content Logical Definition

This value set includes codes from the following code systems:

 

4.3.1.402.2 Expansion

This expansion generated 20 Dec 2017

This value set contains 12 concepts

Expansion based on http://hl7.org/fhir/data-absent-reason version 3.2.0, http://hl7.org/fhir/v3/NullFlavor version 2017-07-31

CodeSystemDisplayDefinition
unknownhttp://hl7.org/fhir/data-absent-reasonUnknownThe value is not known.
askedhttp://hl7.org/fhir/data-absent-reasonAskedThe source human does not know the value.
temphttp://hl7.org/fhir/data-absent-reasonTempThere is reason to expect (from the workflow) that the value may become known.
not-askedhttp://hl7.org/fhir/data-absent-reasonNot AskedThe workflow didn't lead to this value being known.
maskedhttp://hl7.org/fhir/data-absent-reasonMaskedThe information is not available due to security, privacy or related reasons.
unsupportedhttp://hl7.org/fhir/data-absent-reasonUnsupportedThe source system wasn't capable of supporting this element.
astexthttp://hl7.org/fhir/data-absent-reasonAs TextThe content of the data is represented in the resource narrative.
errorhttp://hl7.org/fhir/data-absent-reasonErrorSome system or workflow process error means that the information is not available.
NaNhttp://hl7.org/fhir/data-absent-reasonNot a NumberNaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value.
not-performedhttp://hl7.org/fhir/data-absent-reasonNot PerformedThe value is not available because the observation procedure (test, etc.) was not performed.
NINFhttp://hl7.org/fhir/v3/NullFlavornegative infinityNegative infinity of numbers.
PINFhttp://hl7.org/fhir/v3/NullFlavorpositive infinityPositive infinity of numbers.

 

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

Explanation of the columns that may appear on this page:

LvlA few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organise codes for user convenience, but may follow code system hierarchy - see Code System for further information
SourceThe source of the definition of the code (when the value set draws in codes defined elsewhere)
CodeThe code (used as the code in the resource instance). If the code is in italics, this indicates that the code is not selectable ('Abstract')
DisplayThe 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
DefinitionAn explanation of the meaning of the concept
CommentsAdditional notes about how to use the code