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The Grouping of Roles in SNOMED Clinical Terms

SNOMED CT® is a comprehensive concept-based health care terminology that resulted from merger of SNOMED RT® and CTV3. Concepts are semantically defined using hierarchical (is-a) relationships and attribute-value relationships (roles) with other concepts. Stated relationships are created manually by editors and then a description logic classifier is used to develop inferred relationships based on these stated relationships. Semantic definitions can be problematic when concepts contain multiple types of attributes and attribute-values. This poster describes the grouping together of roles for clearer expression of interrelated, defining characteristics of concepts.