Psychotherapy High Wycombe Psychotherapy High Wycombe - Last updated 07 January 2026

DSM Reference Home

DSM-IV and DSM-IV-TR:

Major Depressive Disorder, Single Episode

For and individual to be diagnosed with this Depressive Disorder they must have experienced at least one Major Depressive Episode, but no Manic, Hypomanic, or Mixed Episodes.

Diagnostic criteria for 296.2x Major Depressive Disorder, Single Episode

A. Presence of a single Major Depressive Episode.

B. The Major Depressive Episode is not better accounted for by Schizoaffective Disorder and is not superimposed on Schizophrenia, Schizophreniform Disorder, Delusional Disorder, or Psychotic Disorder Not Otherwise Specified.

C. There has never been a Manic Episode, a Mixed Episode, or a Hypomanic Episode. Note: This exclusion does not apply if all of the manic-like, mixed-like, or hypomanic-like episodes are substance or treatment induced or are due to the direct physiological effects of a general medical condition.

Specify (for current or most recent episode):

Severity/Psychotic/Remission Specifiers
Chronic
With Catatonic Features
With Melancholic Features
With Atypical Features
With Postpartum Onset

Based on the Diagnostic & Statistical Manual of Mental Disorders, 4th edition APA

The online Diagnostic & Statistical Manual of Mental Disorders lists most of the major psychological disorders and illnesses and lists the criteria that must be fulfilled in order for a diagnosis to be made. This resource is not a substitute for proper professional psychiatric diagnosis.