The DSM was originally developed because there weren't clear guidelines for classifying mental disorders. In 1952, the first edition of the DSM was published and contained descriptions of medical disorders for clinical use. Since 1952, five editions have been published, with the latest version, DSM-V, published in 2013. The DSM-5 is used to assess and diagnose a mental disorder, which is a first step toward seeking appropriate medical treatment. Although it does not contain a complete description of all mental disorders, it provides descriptions of how disorders are presented and recognized by clinicians. The DSM-5 does not contain information about treatment or intervention of any disorder. The DSM is organized into three sections. The first section provides background information and describes how to use the manual. Section two provides detailed information such as diagnostic criteria, features, prevalence, risk factors and comorbidity for many different disorders. The third section includes new disorders and features since the DSM-IV was published. Although it is not within an occupational therapist's scope of practice to diagnose clients or patients, understanding how to use the DSM-V is essential to occupational therapy practice, particularly in mental health settings. Relevant to occupational therapists, the DSM-5 can help when assessing people to determine the effectiveness of treatment. Reference: American Psychiatric Association, & American Psychiatric Association. (2013). DSM 5. American Psychiatric Association, 70.