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). The World Health Organization's (WHO) Disability Assessment Schedule is added to Section III (Emerging measures and models) under Assessment Measures, as a suggested, but not required, method to assess functioning.[5]