Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Depressive personality disorder (also known as melancholic personality disorder) is a controversial psychiatric diagnosis that denotes a personality disorder with depressive features. It is a disorder described in Appendix B in the American Psychiatric Association''s DSM-IV-TR as worthy of further study. It is not listed in the manual''s personality disorder category. The diagnosis can be made under Personality disorder not otherwise specified, however.