Provides clinical descriptions, diagnostic guidelines, and codes for all mental and behavioral disorders commonly encountered in clinical psychiatry. The classification divides disorders into ten groups according to major common themes or descriptive likeness. For each disorder, a full description of the main clinical features and all other important but less specific associated features are provided. Diagnostic guidelines indicate the number, balance, and duration of symptoms usually required before a confident diagnosis can be made. Inclusion and exclusion criteria are also provided, together with conditions to be considered in differential diagnosis.