A. Non-bizarre delusions have lasted for at least one month.
B. This disorder is characterized by the absence of hallucinations, disorganized speech, grossly disorganized or catatonic behavior or negative symptoms of schizophrenia (tactile or olfactory hallucinations may be present if related to the delusional theme).
C. Behavior and functioning are not significantly bizarre or impaired.
D. If mood episodes have occurred, the total duration of mood pathology is brief compared to the duration of the delusions.
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