This section  is a basic orientation to the purpose, structure, content, and
use of DSM-5. It is not intended to provide an exhaustive account of the evo-
lution of DSM-5, but rather to give readers a succinct overview of its key ele-
ments. The introductory section descr ibes the public, professional, and expert
review process that was used to extensively evaluate the diagnostic criteria
presented in Section II. A summary of t he DSM-5 structure, harmonization with
ICD-11, and the transition to a non-axial system with a new approach to as-
sessing disability is also presented. “Use of the Manual” includes “Definition of
a Mental Disorder,” forensic considerations, and a brief overview of the diag-
nostic process and use of coding and recording procedures.