subtype relationship
subtype relationship
A relationship that asserts that a concept is a subtype of another concept.
Notes
Subtype relationships __ are represented by relationship type 116680003 | is a| .
A subtype relationship asserts that a concept conforms to all the defining characteristics the supertype concept but also has at least one feature or refinement that distinguishes it from that concept.
Note that the distinguishing features may or may not be represented in the concept definition of the subtype concept.
Concepts are defined by a combination of subtype relationships and attribute relationships.
Example
The table below shows an example of a subtype relationship as it appears in the three significant columns of the relationship file.
[ 6025007
Laparoscopic appendectomy
](http://snomed.info/id/6025007 "6025007
Alternatives
Is a
Related Links
Attribute relationship
Subtype
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