attribute group

attribute group

An association between a set of attribute value pairs that causes them to be considered together within a concept definition or postcoordinated expression.

Notes

• When an attribute group is represented as a group of defining relationships it is usually referred to as a relationship group.

Example

• | Cholecystectomy with exploration of common duct| has two different attribute groups:

  • | Method| | Exploration - action| is grouped with | Procedure site - Direct (attribute)| | Common bile duct structure|

  • | Method| | Excision - action| is grouped with | Procedure site - Direct (attribute)| | Gallbladder structure|

• If these attributes were not grouped, this procedure would incorrectly classified as a subtype of | Excision of common bile duct| .

Alternatives

• Relationship group

• Role group

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