What are some diagnostic criteria for delusional Disorder?

A. presence of 1 or more delusions over 1 mo. B. Criteria for Schizophrenia never met C. Functioning not markedly impaired, behave also not bizarre or odd. D. If manic or major depressive episodes have occurred, they have been brief relative to delusions E. Disturbance not attributed to physiological effect of substance or another medical condition.