Axioms tab

Each concept in SNOMED CT is logically defined through its relationships to other concepts. Every active SNOMED CT concept (except the SNOMED CT Concept 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.

This tab is used for editing relationships, either supertype-subtype relationships and attribute relationships. See Editing new relationships for further information on relationships edition.