An 900000000000521006 |Association type reference set|represents a set of unordered associations of a particular type between components.
Table 5.2.5-1: Association reference Set - Data structure
|Part of Primary Key|
|NO||YES (Full /Snapshot)|
The inclusive date or time at which this version of the identified reference set member became the current version.
Note: In distribution files the effectiveTime should follow the short ISO date format (YYYYMMDD) and should not include the hours, minutes, seconds or timezone indicator.
The identifier of the target component of the association.
An inconsistency in this specification was resolved by the Modeling Advisory Group 2018-10-15 decision that this field should be mutable.
The following metadata supports this reference set:
Table 5.2.5-2: Association Reference Sets in the Metadata Hierarchy
Each member of a 900000000000522004 |Historical association| reference set 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 900000000000522004 |Historical association| reference set represents a different type of association between the components referred to by the referencedComponentId and the targetComponentId as shown in Table 5.2.5-3.
Table 5.2.5-3: Association reference set types in the International Release of SNOMED CT
Association reference set
|(not used currently)|
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|.
Notes on the tables used to show descriptors and examples The reference set example tables on this page have been revised as follows to aid clarity and understanding:
Reference Set Descriptor and Example Data
Notes on the tables used to show descriptors and examples
The reference set example tables on this page have been revised as follows to aid clarity and understanding:
The tables below show examples of the descriptors for specific reference sets that follow the 900000000000521006 |Association type reference set|pattern.
Table 5.2.5-4: Refset Descriptor rows for the SAME AS association reference set
referencedComponentId (Referenced component)
attributeDescription (Attribute description)
attributeType (Attribute type)
attributeOrder (Attribute order)
The following table holds example entries for the 900000000000526001 |REPLACED BY association reference set|.
Table 5.2.5-5: Sample content from
referencedComponentId (Association source component)
targetComponentId (Association target component)