Mental health

Dual diagnosis treatment: Treating addiction and mental health together

Published October 8, 2024 · 8 min read · Updated April 2026

Reviewed for accuracy by licensed clinical professionals.

Approximately 50% of people with addiction have a co-occurring mental health condition. Treating one without the other leads to poor outcomes for both.

What is dual diagnosis

The presence of both a substance use disorder and a mental health condition: depression, anxiety, PTSD, bipolar, BPD, schizophrenia, eating disorders, ADHD, OCD.

Why integrated treatment matters

Separate treatment (addiction program then mental health, or vice versa) produces worse outcomes. Each condition drives the other. Integrated treatment addresses both simultaneously with a coordinated team.

Finding integrated treatment

Ask programs specifically about dual diagnosis capability. Licensed psychiatrist on staff is essential. Verify staff trained in both addiction and mental health. Use our directory filtering for dual diagnosis programs.

Authoritative sources

This article references guidelines from: SAMHSA · NIDA · ASAM

Frequently asked questions

What is dual diagnosis?

Having both a substance use disorder and a mental health condition simultaneously.

Why does dual diagnosis need integrated treatment?

Each condition drives the other. Treating them separately produces worse outcomes than addressing both simultaneously.

How common is dual diagnosis?

Approximately 50% of people with addiction have a co-occurring mental health condition.

Disclaimer: Informational only. Not medical advice. SAMHSA: 1-800-662-4357.