<status value="active"/> <experimental value="false"/> <date value="2021-01-05T10:01:24+11:00"/> <publisher value="HL7 (FHIR Project)"/> <contact> <telecom> <system value="url"/> <value value="http://hl7.org/fhir"/> </telecom> <telecom> <system value="email"/> <value value="fhir@lists.hl7.org"/> </telecom> </contact> <description value="Used to distinguish different roles a resource can play within a set of linked resources."/> <jurisdiction> <coding> <system value="http://unstats.un.org/unsd/methods/m49/m49.htm"/> <code value="001"/> <display value="World"/> </coding> </jurisdiction> <caseSensitive value="true"/> <valueSet value="http://hl7.org/fhir/ValueSet/linkage-type"/> <content value="complete"/> <concept> <code value="source"/> <display value="Source of Truth"/> <definition value="The resource represents the "source of truth" (from the perspective of this Linkage resource) for the underlying event/condition/etc."/> </concept> <concept> <code value="alternate"/> <display value="Alternate Record"/> <definition value="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."/> </concept> <concept> <code value="historical"/> <display value="Historical/Obsolete Record"/> <definition value="The resource represents an obsolete record of the underlying event/condition/etc. It is not expected to be actively maintained."/> </concept> </CodeSystem>

This code system http://hl7.org/fhir/linkage-type 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.