A. The presence of one (or more) delusions with a duration of 1 month or longer.<br />B. Criterion A for schizophrenia has never been met.<br />Note: Hallucinations, if present, are not prominent and are related to the delusional<br />theme (e.g., the sensation of being infested with insects associated with delusions of<br />infestation).<br />C. Apart from the impact of the delusion(s) or its ramifications, functioning is not markedly<br />impaired, and behavior is not obviously bizarre or odd.<br />D. If manic or major depressive episodes have occurred, these have been brief relative<br />to the duration of the delusional periods.<br />E. The disturbance is not attributable to the physiological effects of a substance or another<br />medical condition and is not better explained by another mental disorder, such<br />as body dysmorphic disorder or obsessive-compulsive disorder.
