Type Specific Notes on Common Attributes

id
effectiveTime
active
moduleId
refsetId	In this case, the refsetId is always 900000000000456007 \| Reference set descriptor\| as there is only one reference set of this type.
referencedComponentId	Refers to the concept that identifies the reference set (or reference set type) defined by this descriptor.

Type Specific Additional Attributes

Field	Data type	Purpose	Mutable	Part of Primary Key
attributeDescription	SCTID	Specifies the name of an attribute that is used in the reference set to which this descriptor applies. Set to a descendant of 900000000000457003 \| Reference set attribute (foundation metadata concept)\| in the metadata hierarchy, that describes the additional attribute extending the reference set .	NO	NO
attributeType	SCTID	Specifies the data type of this attribute in the reference set to which this descriptor applies. Set to a descendant of 900000000000459000 \| attribute type (foundation metadata concept)\| in the metadata hierarchy, that describes the type of the additional attribute extending the reference set .	NO	NO
attributeOrder	integer	Specifies the position of this attribute in the reference set to which this descriptor applies. A zero value identifies the referencedComponentId within the reference set. Other values specify an additional attributes by its position relative to the referencedComponentId. Within a particular descriptor, attributeOrder values for a particular referencedComponentId must be contiguous. An unsigned Integer, providing an ordering for the additional attributes extending the reference set .	NO	NO