SNOMED CT® Release Format 1 (RF1) Guide - ihtsdo

Concept
E
F
G
H
J
K
L
M
Note:
Comprehensive list of primitive supertypes
A, E
A, F
A, B, G
A, B, E
A, E, F
A, F
A, B, E, G
A, B, E, F
1. In this view the definitions of primitive concepts should implicitly or explicitly include a reference to
the defined concept itself. This is because a primitive concept expresses some meaning that is not
fully distinguished from its supertypes by other defining relationships. The reference to self need not
be explicitly stored and provided that it is included implicitly at run time.
2. All active concepts include the root concept in their transitive closure. The reference to root need not
be explicitly stored provided that it is included implicitly at run time.
2.2.1.3.2.3.1.4. Proximal primitive supertypes (short normal view)
An inferred concept definition may contain relationships to the set of proximate primitive supertype parents
of that concept. Relationships with fully defined supertype ancestors are omitted as are relationships with
primitive ancestors that are also supertypes of one of proximate primitive supertypes.
This view can be used to test if a candidate expression is subsumed by a predicate concept. If the proximal
primitive supertype view of the concept definition of the predicate includes any concept that is not in the
comprehensive primitive view of the candidate expression, then the expression is not subsumed by the
concept.
The | is a | relationships in the SNOMED CT 'canonical table' represent this view.
Structure and Content Guide | 35
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