Co-Occurring Disorders: Addiction and Mental Health

Co-occurring disorders means a person has both a substance use disorder and a mental health disorder. Anxiety, depression, trauma-related symptoms, and substance use can interact, but the relationship differs from person to person. Assessment helps identify the concerns that need attention.

The term describes two kinds of concern; it does not tell the whole story of how someone is doing. A person may want help with sleep, work, relationships or getting through an ordinary day as well as with a diagnostic label. Naming the difficulties in your own words gives the conversation a starting point.

There is no single explanation. Shared factors, such as genetics, stress, or trauma, can contribute to both conditions. Some people use substances to cope with mental health symptoms; substance use can also worsen mental health. NIMH explains why the relationship can work in both directions. A clinician considers the person’s history instead of assuming one condition caused the other.

The distinction matters when reading about someone else’s experience. An account of using alcohol to cope with anxiety describes one person’s explanation; it does not establish the cause of every anxiety or substance-use concern. “Co-occurring” names the presence of both conditions, rather than a single sequence that everyone follows.

You do not have to settle that history before seeking a conversation about both concerns. For practical help organizing what you have noticed, read three questions about a dual-diagnosis assessment. That guide covers the timeline to bring; this article explains the terms and how care can be coordinated.

Integrated care coordinates treatment for mental health and substance use. Depending on the assessment, a plan may include behavioral therapy, medication, care management, or a combination. Ask who brings these parts together and how the team reviews progress. A diagnosis alone does not determine whether residential or outpatient care is appropriate.

Coordination is also a practical question. If more than one professional is involved, ask who holds the overall plan, how updates are shared with your permission and whom to contact when advice seems inconsistent. You can bring the same question to the people involved instead of trying to reconcile different instructions alone.

Ask how the program assesses both concerns, how clinicians communicate, and how your priorities shape the plan. If you already see a therapist or prescriber, ask how coordination and information sharing would work. Compare dual diagnosis residential care with the broader levels of care so you can discuss both treatment focus and setting.

• Assessment: “How will you learn about both my symptoms and my substance use?”
• Priorities: “Which difficulties are we working on first, and how will we revisit that decision?”
• Continuity: “What information would you need from my existing providers, and what permission is required?”
• Progress: “What changes should we discuss at our next review?”

Write down what has changed, what treatment you have tried, and the questions you want answered. You do not need to decide which diagnosis matters most before asking for help. Read the co-occurring conditions overview or speak with Admissions about assessment and next steps.