Cannabis Withdrawal - A New Diagnostic Category in DSM-5.

Background: Cannabis withdrawal was not formally recognized by the DSM-IV classification but is listed, albeit without diagnostic criteria by ICD-10. The American Psychiatric Association recently has included cannabis withdrawal into DSM-5 classification as part of the "Substance-Related and Addictive Disorders" Section. However, many psychiatrists as well as other medical professionals have very little information, if at all, about the new diagnostic entity.