A multidisciplinary audit of care delivered to diabetic patients was completed at the Royal Victoria Hospital, in Montreal. The audit of inpatient care was implemented using Criteria Mapping. A Criteria Map is based on decision-making logic and allows use of criteria relevant to individual patients. The Map includes 23 criteria: 18 medical, three dietetic, and one nursing. The charts of 17 patients discharged with a diagnosis of diabetes mellitus were reviewed. A score above 75% indicated that each discipline rendered adequate care. The medical compliance was 78.46%, dietetic 79.17%, and nursing 85.71%. Mean dossier score was 80.62%. The Criteria Map was highly satisfactory as an audit method; the results of the audit illustrated a need for more complete documentation of services, especially in the area of patient education.