Updated with all new and revised codes for 2007! Easy to understand descriptions of over 11,000 diagnosis codes, covering all body/organ systems. Diagnoses are broken down in the numeric section to allow easy identification of changes for 2007! Simplification of complex diagnoses for endocrine, metabolic and nutritional disorders and the recent changes affecting mental disorders. Identification and guidance for diagnostic coding of infectious diseases with the complexities of manifestations and treatments.