Snomed® CT: The Fit with Classification in Health.

Classification systems are the primary means for automated retrieval and analysis of healthcare data from individual patient medical records. This article will provide a brief history and overview of the two most comprehensive and advanced controlled clinical terminologies in the world: the Systematized Nomenclature of Medicine Reference Terminology (SNOMED® RT), and Clinical Terms Version 3 (CTV3). A discussion will follow of the merger of these two terminologies into a single new work, SNOMED® Clinical Terms (SNOMED® CT), as released in early 2002, how it is used to retrieve data, how it differs from a classification, and the opportunities open to health information management professionals to expand their roles as information managers through their knowledge of SNOMED CT.