When a person has both a mental illness and a substance use disorder, it is called co-occurring disorders. These health problems often affect each other, making it complicated to diagnose, treat, and ...

Co-occurring disorder refers to having a co-existing mental illness and substance use disorder. While commonly used to refer to the combination of substance use and mental disorders, the term can also ...

You may have heard the term “co-occurring disorder” or “dual diagnosis” or “comorbidity”—but what do these constructs mean, exactly? The term co-occurring disorder refers to the presence of two or ...