Historical Association Reference Sets are used to link concepts that have been inactivated to active concepts that represent an identical, similar or possible meaning of the inactivated concept.
Historical Association Reference Sets follow the release file specification documented in Association Reference Set with the inactive concept represented by the referencedComponentId, the type of association represented by the refsetId and the related active concept represented by the targetComponentId.
The following subsections identify the metadata used to represent different types of historical associations.
The following metadata supports this reference set:
Historical Association Reference Set names in the metadata hierarchy
Each member of a represents a reference from an inactive component to other equivalent or related components that were current in the Release Version in which that component was inactivated.
Each represents a different type of association between the components referred to by the referencedComponentId and the targetComponentId as shown in the Table below.
Association reference set types in the International Release of SNOMED CT
The component identified by the targetComponentId must be an instance of the same class of component as the component identified by the referencedComponentId for all Historical association reference sets apart from the |REFERS TO concept association reference set|.
The tables below show examples of the descriptors for specific reference sets that follow the pattern.
Refset Descriptor rows for the SAME AS association reference set
The following table holds example entries for the .
Sample content from
Practical Guide to Reference Sets
Applies to an erroneous, obsolete and other inactive component for which there is a single active replacement. The targetComponent identifies the active component that replaces this component.
Applies to a component that is a duplicate. The targetComponent identifies the active component that this component duplicates.
Links an inactive classification concept such as "not otherwise specified" or "otherwise specified" with the active concept that was formerly its most proximal supertype.
(not used currently)
Links an inactive classification concept derived from ICD-9 Chapter XVI "Symptoms signs and ill-defined conditions" with the most similar active concept.
Applies to an inactive description which is inappropriate to the concept it is directly linked to but instead should refer to the concept referenced by the targetComponent.
Applies to a component that is inactivated with reason outdated. The assigned targetComponent identifies two or more potential replacements that are active and represent the possible meanings of the inactive outdated component.
Applies to a component that is inactivated with reason classification derived. The assigned targetComponent identifies two or more replacements that are active and represent the possible meaning of the inactive component. This association signifies that all applied potential replacements must be implemented within the clinical record to ensure the original clinical idea is represented.
0
1
Applies to a concept that is ambiguous. The targetComponent is an active concept that represents one of the possible meanings of the inactive concept . Multiple rows are used to refer to each of the possible meanings of the ambiguous concept.
Applies to a component that has been moved to (or are pending a move to) another namespace. The targetComponent identifies the target namespace (not the new component).
Applies to a component that has been moved to this namespace from another namespace. The targetComponent identifies the original componentIdentifier in its previous namespace.