You should familiarize yourself with the DSM-5 criteria for Substance Use Disorder. They are nearly identical to a combination of the criteria for the diagnoses in the DSM-IV TR of Substance Abuse and Substance Dependence. Specify Opioid Use Disorder, if it is the drug of abuse. The criteria for Opioid Use Disorder are listed in a checklist form available in the Resources on this page.
Review printable fact sheets with the DSM-IV criteria:
Note: A new version of the DSM, DSM-5 was released in May 2013, which did away with the separate diagnoses of substance "dependence" and substance "abuse" and replaced them with a single diagnosis, substance "use disorder" based on nearly the same criteria combined. A minimum of 2-3 criteria is required for a mild substance use disorder diagnosis, while 4-5 is moderate, and 6-7 is severe (APA, 2013). The other major change was to remove the criterion related to legal problems and to add one related to substance craving.