Diagnosis, Dual (Psychiatry)

**Definition:** The co-existence of a substance abuse disorder with a psychiatric disorder. The diagnostic principle is based on the fact that it has been found often that chemically dependent patients also have psychiatric problems of various degrees of severity.

**Tree numbers:** - E01.190

**Synonyms:** - Dual Diagnosis - Psychiatric Diagnosis, Dual - Psychiatric Dual Diagnosis - Dual Diagnosis, Psychiatric