I am also a CARN, 5 years in psych dual diagnosis and mood disorders, though now I have the opportunity to focus on inpatient detox. The term "addiction" does not solely encompass substances. There is gambling, sex, relationships, food, sugar, drama, etc. Evidence shows the same parts of the brain are engaged when the individual is partaking in their drug of choice, even when it comes in the form of a donut. Naltrexone is being used for craving management in prevention of opiate use (IM-Vivitrol), alcohol abuse (PO-Revia), and binge eating disorder (PO-Contrave). Similar interventions and therapies are used to teach our patients no matter what they are recovering from. Why do you think you can find a 12 step recovery program for alcohol, narcotics, overeating, gamboling and sex? Because people have successfully learned a different way of life through the same concepts. Words only have power we give to them as a culture. In my experience, "addiction" is a condition, period. "Addict" can carry the same stigma as "alcoholic" or "dope fiend", and whether or not to identify with the label is up to the individual who is living the experience. Do some research on the use of person first language. I believe you are correct in a clinical "PC" or diagnostic regard of using SUD over the term addiction. I'm uncertain there is a DSM-V diagnosis for addiction, though I do know SUD and AUD are in the DSM-V. But, when we are talking with our patients, we use the terms they prefer. For many, it will be addiction.