more criteria for a diagnosis of DSM-IV substance abuse and three or more for DSM-IV depen-
dence. Cannabis withdrawal and caffeine withdrawal  are new disorders (the latter was in
DSM-IV Appendix B, “Criteria Sets and Axes Provided for Further Study”).
Severity  of the DSM-5 substance use disorders is  based on the number of criteria en-
dorsed. The DSM-IV specifier fo r a physiological subtype is eliminated in DSM-5, as is the
DSM-IV diagnosis of polysubstance dependence. Early remission from a DSM-5 substance