Co-occurring disorders

"Co-occurring disorders" and "dual diagnosis" mean the same thing. SAMHSA prefers "co-occurring disorders"; the field uses both. The reality is identical: addiction and mental-health symptoms show up together, feed each other, and need to be treated together.

This is the norm, not the exception, in residential treatment. Roughly 50 to 70 percent of people in residential addiction programs also have a mental-health condition. The numbers are similar in psychiatric residential settings, where substance use is often present but secondary.

Integrated treatment — one clinical team addressing both conditions at the same time — is the standard of care. The old approach of getting sober first and dealing with mental health later produces worse outcomes and is no longer recommended.