DSTU2

This page is part of the FHIR Specification (v1.0.2: DSTU 2). 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: R5 R4B R4 R3 R2

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

This is a value set defined by the FHIR project.

Summary

Defining URL:

http://hl7.org/fhir/ValueSet/data-absent-reason

Name:

DataAbsentReason

Definition:

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

OID:

2.16.840.1.113883.4.642.2.3 (for OID based terminology systems)

System URL:

http://hl7.org/fhir/data-absent-reason

System OID:

2.16.840.1.113883.4.642.1.3

Source Resource

XML / JSON

Concept Maps for this value set:

to v3 Code System NullFlavor

v3 map for DataAbsentReason

XML

JSON

This value set is used in the following places:

Extension http://hl7.org/fhir/StructureDefinition/data-absent-reason: Data Absent Reason ((Required))

1.25.2.1.3.1 Content Logical Definition

This value set has an inline code system http://hl7.org/fhir/data-absent-reason, which defines the following codes:

Lvl	Code	Display	Definition	v3 Map (NullFlavor)
1	unknown	Unknown	The value is not known.	=UNK
1	asked	Asked	The source human does not know the value.	=ASKU
1	temp	Temp	There is reason to expect (from the workflow) that the value may become known.	=NAV
1	not-asked	Not Asked	The workflow didn't lead to this value being known.	=NASK
1	masked	Masked	The information is not available due to security, privacy or related reasons.	=MSK
1	unsupported	Unsupported	The source system wasn't capable of supporting this element.	<NA
1	astext	As Text	The content of the data is represented in the resource narrative.
1	error	Error	Some system or workflow process error means that the information is not available.	<NA
2	NaN	Not a Number	NaN, standing for not a number, is a numeric data type value representing an undefined or unrepresentable value.	<NA

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