Release 5 Draft Ballot

This is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions Code System

Patient Care Work Group Maturity Level: 0Trial Use Use Context: Any

This is a code system defined by the FHIR project.


Defining URL:

Used to distinguish different roles a resource can play within a set of linked resources.

Committee:Patient Care Work Group
OID:2.16.840.1.113883.4.642.1.315 (for OID based terminology systems)
Source ResourceXML / JSON

This Code system is used in the following value sets:

  • ValueSet: LinkageType (Used to distinguish different roles a resource can play within a set of linked resources.)

This code system defines the following codes:

Code Display Definition
source Source of Truth The resource represents the "source of truth" (from the perspective of this Linkage resource) for the underlying event/condition/etc.
alternate Alternate Record The resource represents an alternative view of the underlying event/condition/etc. The resource may still be actively maintained, even though it is not considered to be the source of truth.
historical Historical/Obsolete Record The resource represents an obsolete record of the underlying event/condition/etc. It is not expected to be actively maintained.


See the full registry of code systems defined as part of FHIR.

Explanation of the columns that may appear on this page:

LevelA few code lists that FHIR defines are hierarchical - each code is assigned a level. 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