Various medical procedure classifications have been used in combination with disease classifications in Canada for decades. In anticipation of the introduction of the next revision of the International Classification of Diseases (ICD-10), a project has begun to revise the Canadian Classification of Diagnostic, Therapeutic, and Surgical Procedures (CCP) that will accompany it. Changes in health care delivery dictate that this revised classification have broader application than its predecessor. This report begins with some results of the consultation processes undertaken to prepare for the revision. The planned structure and scope of the revised classification system are explained. Progress of the revision project to date and its future directions are described. The report's authors solicit information and assistance from classification users and from potential users of data based on the classification.