Linkage

Foundation

Identifies two or more records (resource instances) that refer to the same real-world "occurrence".

Linkage is a FHIR R4 Foundation resource — links records for 'same' item. It defines 17 elements and supports 12 search parameters.

Path	Card.	Type	Description & Constraints
Linkage	0..*	—	Links records for 'same' item
.idΣ	0..1	String	Logical id of this artifact
.metaΣ	0..1	Meta	Metadata about the resource
.implicitRules?!Σ	0..1	uri	A set of rules under which this content was created
.language	0..1	code	Language of the resource content Bindinglanguages(preferred)
.text	0..1	Narrative	Text summary of the resource, for human interpretation
.contained	0..*	Resource	Contained, inline Resources
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!	0..*	Extension	Extensions that cannot be ignored
.activeΣ	0..1	boolean	Whether this linkage assertion is active or not
.authorΣ	0..1	Reference(Practitioner \| PractitionerRole \| Organization)	Who is responsible for linkages
.itemΣ	1..*	BackboneElement	Item to be linked
.id	0..1	String	Unique id for inter-element referencing
.extension	0..*	Extension	Additional content defined by implementations
.modifierExtension?!Σ	0..*	Extension	Extensions that cannot be ignored even if unrecognized
.typeΣ	1..1	code	source \| alternate \| historical Bindinglinkage-type(required)
.resourceΣ	1..1	Reference(Resource)	Resource being linked