Type Specific Notes on Common Attributes

id
effectiveTime
active
moduleId
refsetId	In this case, a subtype descendant of: 900000000000455006 \| Reference set\|
referencedComponentId

Type Specific Additional Attributes

Field	Data type	Purpose	Mutable	Part of Primary Key
expression	String	A SNOMED CT expression that conforms to the compositional grammar.	YES	NO
substrate	Uniform Resource Identifier	The SNOMED CT content by which the expression is authored.	YES	NO