Diagnostic and Statistical Manual: DSM-5-TR This link opens in a new windowThe American Psychiatric Association’s Diagnostic and Statistical Manual of Mental Disorders (DSM) is a classification of mental disorders with associated criteria designed to facilitate more reliable diagnoses of these disorders. With successive editions over the past 60 years, it has become a standard reference for clinical practice in the mental health field. Includes DSM-5 Handbook of Differential Diagnosis, DSM-5 Clinical Cases and DSM-5 Update