allows   to be associated with components for any specified purpose. So, where the linked a SNOMED CT component to another SNOMED CT components, the  allow a SNOMED CT component to be linked to a non-standardized string annotation.



Illustration of the general functionality of Annotation reference sets of the general functionality of Annotation reference sets


Reference Specific Attributes

Besides from the 4 identification and versioning attributes, the annotation reference set type has following attributes.

Field

Data type

Purpose

SCTID

The identifier of the  to be annotated.

The text   to attach to the  identified by  .


 See specification: 5.2.7 Annotation Reference Set