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

38 | SNOMED CT Release Format 1 (RF1) Guide July 2012
Table 10: Comprehensive attribute view of sample concepts
See Figure 14
C. | Injury disorder |
| morphology |=| injury |
E. | Bone or arm injury | (primitive)
| morphology |=| injury |
G. | Severe upper limb laceration | (primitive)
| site |-upper limb structure
| morphology |=| injury |
| severity |=| severe |
J. | Fracture (disorder) |
| site |=bone structure
| morphology |=| injury |
| morphology |=| fracture |
L. | Severe laceration of hand |
| site |=| upper limb structure |
| site |=| hand structure |
| morphology |=| injury |
| severity |=| severe |
Note
Although the morphology | laceration | is not specified in
the example | severe upper limb laceration | refined to
the site hand fully defines this concept.
In a complete view (including supertypes and attributes)
this difference is clear.
D. | Injury of upper limb |
| site |=| upper limb structure |
| morphology |=| injury |
F. | Bone or joint injury | (primitive)
| morphology |=| injury |
H. | Hand injury |
| site |=| upper limb structure |
| site |=| hand structure |
| morphology |=| injury |
K. | Joint injury |
| site |=| joint structure |
| morphology |=| injury |
M. | Scaphoid fracture |
| site |=| upper limb structure |
| site |=| hand structure |
| site |=| bone structure |
| site |=| scaphoid bone structure |
| morphology |=| injury |
| morphology |=| fracture |
2.2.1.3.2.3.2.2. Non-redundant defining Relationships ("distribution view")
An inferred concept definition may include the set of non-redundant defining relationships (and relationships
groups) that are known to be true. This includes those stated and others inferred by inheritance from stated
supertype ancestors. However, any relationships (or relationships groups) that are supertypes of other
relationships (or relationship groups) are redundant and are not included in this view.
A relationship that is part of a relationship group is only regarded as redundant if the relationship group as a
whole subsumes another relationship group.
This is the view expressed in the standard SNOMED CT distribution and this same view also forms part of
the long normal form.
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