The document discusses the classification of mental disorders according to two major systems - ICD-10 and DSM-IV. ICD-10 is the World Health Organization's classification system that codes psychiatric disorders from F00 to F99. DSM-IV is the diagnostic manual published by the American Psychiatric Association that uses a multi-axial system with five axes to evaluate patients. Some key differences between the two systems are that ICD-10 is intended for clinical work, research, and primary care globally while DSM-IV is in English only and includes social consequences in its diagnostic criteria.