Table 1.

Selected ICD-9-CM codes for depression and description

ICD-9-CM Code	Description
296.22	Major depressive affective disorder single episode
296.3	Major depressive affective disorder recurrent episode unspecified degree
296.31	Major depressive affective disorder recurrent
296.32	Major depressive affective disorder recurrent episode moderate degree
296.33	Major depressive affective disorder recurrent episode severe degree without psychotic behavior
296.9	Unspecified episodic mood disorder
311	Depressive disorder not elsewhere classified