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Consider the stated relationships shown below for the concepts
Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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|
and
Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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|
. The concept definitions are represented in accordance with
SNOMED CT Diagramming Guidelines.
Caption label |
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CapId | example-stated-relationships |
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CapType | Table |
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|
Example stated relationships |
This diagram shows the stated definition of the concept Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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| . An Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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| is a procedure in which the appendix structure is excised. | Stated definition of |Appendectomy| Image Modified |
This diagram shows the stated definition of the concept Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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| . An Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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| is a procedure with a priority of emergency, in which the appendix structure is excised. | Stated definition of |Emergency appendectomy| Image Modified |
This diagram shows a hierarchical view of the stated subtype relationships from the concepts above. | Stated subtype relationships Image Modified |
Caption label |
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CapId | comparison-of-stated-definitions |
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CapType | Table |
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|
Comparison of stated definitions |
This diagram shows a comparison of the stated definitions for Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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| and Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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| from above. The two definitions are identical, except for the additional defining relationship on Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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| , which states that the priority is emergency. This means that a classifier can infer that Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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| is a logical subtype of Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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| . | Image Modified |
Caption label |
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CapId | deriving-the-inferred-relationships |
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CapType | Table |
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|
Deriving the inferred relationships |
This diagram shows that once the relationship Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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|
Concept |
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ShowParts | term |
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t | 116680003 |is a| |
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|
Concept |
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ShowParts | term |
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t | 80146002 |Appendectomy| |
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| is inferred, the stated relationship Concept |
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ShowParts | term |
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t | 174036004 |Emergency appendectomy| |
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|
Concept |
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ShowParts | term |
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t | 116680003 |is a| |
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|
Concept |
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ShowParts | term |
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t | 71388002 |Procedure| |
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| becomes redundant. |
Image Modified |
Combining Modules for Classification
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The process of combining an extension with the content of the modules on which it depends is illustrated in below.Image Removedin
Caption reference |
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CapRefId | creating-inferred-relationships-of-extensions |
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CapRefType | Figure |
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|
below. Image Added
Caption label |
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CapId | creating-inferred-relationships-of-extensions |
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CapType | Figure |
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|
Creating inferred relationships for an extension |
It is important that all inferred relationships present in the International Edition are also present in the combined inferred view. This means that the Relationship file in an extension's edition should be a superset of the Relationship file in the International Edition. In particular:
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