1(800) 615-1067The DSM-5 (Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition) no longer distinguishes between substance abuse and substance dependence. Instead, it has combined these two disorders into a single category called “Substance Use Disorder.” This disorder is diagnosed based on the presence of a problematic pattern of substance use leading to clinically significant impairment or distress, as manifested by at least two of eleven criteria within a 12-month period. The severity of Substance Use Disorder is based on the number of criteria met: mild (2-3 criteria), moderate (4-5 criteria), or severe (6 or more criteria).