Answered By: Stephen Dingman Last Updated: Jul 21, 2015 Views: 38
The American Psychological Association's DSM-5 is your best source. Delusional Disorder, Diagnostic Criteria 297.1 is found on pages 90-93. We have this heavily used book in our Ready Reference section, second floor of Moody Learning Center.
In the meantime the following is according to Dorland's illustrated medical dictionary:
a mental disorder marked by well-organized, logically consistent delusions but lacking other psychotic symptoms. Most functioning is not markedly impaired, the criteria for schizophrenia have never been satisfied, and symptoms of a major mood disorder have been present only briefly if at all. DSM-IV distinguishes six types on the basis of the predominant delusional theme: persecutory, jealous, erotomanic, somatic, grandiose, and mixed.
Good luck with your research.