STU3 Candidate

This page is part of the FHIR Specification (v1.8.0: STU 3 Draft). 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: R4B R4 R3

4.2.11.data-absent-reason Code System http://hl7.org/fhir/data-absent-reason

This is a value set defined by the FHIR project.

Summary

Defining URL: http://hl7.org/fhir/data-absent-reason
Name: DataAbsentReason
Definition: Used to specify why the normally expected content of the data element is missing.
Committee: FHIR Infrastructure Work Group
OID: 2.16.840.1.113883.4.642.1.data-absent-reason (for OID based terminology systems)
Source Resource XML / JSON

This Code system is used in the following value sets:

  • Observation Value Absent Reason (This value set defines the set of codes for identifying the reason why the expected result in Observation.value[x] is missing.)
  • DataAbsentReason (Used to specify why the normally expected content of the data element is missing.)

4.2.11.data-absent-reason.1 Content

4.2.11.data-absent-reason.2 DataAbsentReason

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

This code system http://hl7.org/fhir/data-absent-reason defines the following codes:

Lvl Code Display Definition Comments
1 unknown Unknown The value is not known.
1 asked Asked The source human does not know the value.
1 temp Temp There is reason to expect (from the workflow) that the value may become known.
1 not-asked Not Asked The workflow didn't lead to this value being known.
1 masked Masked The information is not available due to security, privacy or related reasons. Using "masked" may be breach of security or confidentiality, but there are times when its use is required to support alternate workflows for gaining access to denied information.
1 unsupported Unsupported The source system wasn't capable of supporting this element.
1 astext As Text The content of the data is represented in the resource narrative. it may be linked by internal references (e.g. xml:id). This usually implies that the value could not be represented in the correct format - this may be due to system limitations, or this particular data value
1 error Error Some system or workflow process error means that the information is not available.
2   NaN Not a Number NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value. This is sometimes an output value from measuring devices
1 not-performed Not Performed The value is not available because the observation procedure (test, etc.) was not performed.

 

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