Tests and diagnosisBy Mayo Clinic staff
Diagnosis of schizoaffective disorder usually comes after an in-depth interview with a doctor. As part of this interview, the doctor will likely take a medical, psychiatric and social history and also ask about symptoms and mental well-being. A physical examination can help rule out other conditions, and a mental health professional will likely be consulted.
To be diagnosed with schizoaffective disorder, a person must meet criteria spelled out in the Diagnostic and Statistical Manual of Mental Disorders (DSM), published by the American Psychiatric Association.
DSM criteria for the diagnosis of schizoaffective disorder include:
- Schizophrenia along with mood symptoms
- A mood disorder along with symptoms of schizophrenia
- Both a mood disorder and schizophrenia
- A psychotic condition other than schizophrenia, plus a mood disorder
Diagnosis requires that the condition is not due to the direct effects of a substance — such as a recreational drug or medication — or due to a general medical condition. In addition, the person must never have met the criteria for any other schizophrenic disorder.
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