Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition, abbreviated as DSM-5, is the 2013 update to the American Psychiatric Association's (APA) classification and diagnostic tool.

DSM-5 has discarded the multiaxial system of diagnosis (formerly Axis I, Axis II, Axis III), listing all disorders in Section II. It has replaced Axis IV with significant psychosocial and contextual features and dropped Axis V (Global Assessment of Functioning, known as GAF).

There are three major sections of the DSM-5

Section I.
Introduction and clear information on how to use the DSM.

Section II.
Provides information and categorical diagnoses.

[/B]Section III:

provides self-assessment tools, as well as categories that require more research.