When a person struggles with both a substance use disorder and a mental health condition at the same time, clinicians call this a co-occurring disorder—sometimes referred to as a dual diagnosis. This combination is far more common than many people realize, and understanding how the two conditions interact is an important step toward finding effective, lasting help. If you're a New York State employee or retiree covered by NYSHIP or The Empire Plan, this guide explains what co-occurring disorders are, why integrated treatment matters, and how to begin exploring your benefits.
This article is educational and is not medical, insurance, or legal advice. Coverage details vary by plan, so always verify your specific benefits before making treatment decisions.
A co-occurring disorder exists when someone experiences a mental health condition—such as depression, anxiety, bipolar disorder, or post-traumatic stress disorder (PTSD)—alongside a substance use disorder involving alcohol, opioids, stimulants, or other substances. According to the Substance Abuse and Mental Health Services Administration (SAMHSA), millions of adults in the United States live with both conditions at once.
These disorders often influence one another. Someone dealing with untreated anxiety may use alcohol to cope, which can deepen the anxiety over time. Conversely, heavy substance use can trigger or worsen symptoms of depression and other conditions. Because the two are so intertwined, treating only one while ignoring the other frequently leads to relapse or incomplete recovery.
Research from the National Institute on Drug Abuse (NIDA) points to several reasons these conditions frequently appear together:
Importantly, there is no single cause. The relationship differs from person to person, which is exactly why individualized assessment is so valuable.
Integrated treatment means addressing mental health and substance use conditions together, within the same coordinated plan of care, rather than in separate silos. Instead of sending a patient to one provider for addiction and a different, unconnected provider for depression, an integrated approach unites these services so the whole person is treated at once.
SAMHSA identifies integrated care as the gold standard for co-occurring disorders. In practice, this often includes a combination of:
Learn more about how this specialized care works on our dual diagnosis treatment page.
Treatment is not one-size-fits-all. The American Society of Addiction Medicine (ASAM) describes a continuum of care that helps match each person to the appropriate level of support based on their needs. These levels commonly include:
You can review the full continuum on our levels of addiction care guide, and explore flexible options through NYSHIP outpatient treatment.
For some people, medication is a valuable part of recovery. Medication-assisted treatment (MAT) combines FDA-approved medications with counseling to treat opioid and alcohol use disorders. At the same time, psychiatric medications may help stabilize mood or anxiety symptoms. In an integrated program, prescribers coordinate these medications thoughtfully to avoid conflicts and support the whole person.
NYSHIP plans, including The Empire Plan, generally provide coverage for behavioral health services, which can include substance use disorder treatment and mental health care. Federal and state parity protections are designed to help ensure that behavioral health benefits are comparable to medical and surgical benefits, though the specifics—such as copays, prior authorization, and network requirements—depend on your particular plan and situation.
Because coverage varies, it's wise to confirm your benefits before starting treatment. You can start with our overviews of whether NYSHIP covers rehab and the details of Empire Plan rehab coverage. To confirm your individual benefits, our NYSHIP coverage verification page walks you through the process, or you can call 213-321-6518 to get help understanding your options.
For official plan information, the New York State Department of Civil Service Employee Benefits Division is the authoritative source for NYSHIP details.
If you or a loved one is seeking help for co-occurring disorders, consider asking providers these questions:
Choosing a program that genuinely integrates care—rather than treating one condition and overlooking the other—can make a meaningful difference in long-term outcomes.
A co-occurring disorder can feel overwhelming, but it is treatable. With the right combination of therapy, medication when needed, and consistent support, many people build stable, fulfilling lives in recovery. Seeking help is a sign of strength, not failure—and you don't have to navigate it alone.
If you or someone you know is experiencing a mental health crisis or thoughts of suicide, call or text the 988 Suicide & Crisis Lifeline by dialing 988. For free, confidential help finding treatment 24/7, you can also contact the SAMHSA National Helpline at 1-800-662-4357. Help is always available.
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