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Context descriptions (eg. to be used by medical specialties or "patient friendly" terminologies) can also be created. See Creating synonyms for specific uses.
4.2.5 Definition tab
Each concept in SNOMED CT is logically defined through its relationships to other concepts. Every active SNOMED CT concept (except the SNOMED CT root concept) has at least one | is a | relationship to a supertype concept. | Is a | relationships and defining attribute relationships are known as the defining characteristics of SNOMED CT concepts. They are considered defining because they are used to logically represent a concept by establishing its relationships with other concepts. This is accomplished by establishing | Is a | relationships with one or more defining concepts (called supertypes) and modeling the difference with those supertypes through defining attributes.
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