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Unified Medical Language System® (UMLS®)

Canonical Classifications Software Source Information

Web site

The Canonical Clinical Problem Statement System (CCPSS) was developed by Vanderbilt University in conjunction with the Emory University Department of Medicine and Medical Systems Development Corporation.

CCPSS is used to describe and code patient problems in a clinically meaningful way.

CCPSS is a list of problems, modifiers, and term categories. It contains over 15,000 problem terms and associated term frequencies derived from patient records.

CCPSS is used clinicians and informatics researchers.

Metathesaurus Update Frequency
CCPSS was last updated in the Metathesaurus in 2000.

Sites Consulted

  1. Technology – Clinical Problem Statement Vocabulary for Medical Records [Internet]. Nashville (TN): Vanderbilt University; 2009 Mar 20 [cited 2010 Jan 13]. Available from: