Criterion A. At least 2 of the following, each present for a significant portion of time during a 1-month period (or less if successfully treated). At least one of these must be (1), (2), or (3):

1. Delusions
2. Hallucinations
3. Disorganized speech
4. Grossly disorganized or catatonic behavior
5. Negative symptoms

Criterion B. An episode of the disorder lasts at least 1 month but less than 6 months. When the diagnosis must be made without waiting for recovery, it should be qualified as "provisional".

Criterion C. Schizoaffective disorder and depressive or bipolar disorder with psychotic features have been ruled out because either:

1. No major depressive or manic episodes have occurred concurrently with the active-phase symptoms, or
2. If mood episodes have occurred during active-phase symptoms, they have been present for a majority of the total duration of the active and residual periods of the illness.

Criterion D. The disturbance is not attributable to the physiological effects of a substance or another medical condition.

Specifiers:

• With good prognostic features
• Without good prognostic features
• With catatonia