ICD-10-CM Chapters

Term Definition
Chapter1: Certain Infectious and Parasitic Diseases
Chapter2: Neoplasms
Chapter3: Diseases of the Blood and Blood forming Organs and Certain Disorders Involving the Immune Mechanism
Chapter4: Endocrine, Nutritional, and Metabolic Disease
Chapter 5: Mental, Behavioral and Neurodevelopment Disorders
Chapter 6: Diseases of the Nervous System
Chapter 7: Diseases of the Eye and Adnexa
Chapter 8: Diseases of the Ear and Mastoid Process
Chapter 9: Diseases of the circulatory system
Chapter 10: Diseases of the respiratory system
Chapter 11: Diseases of the digestive system
Chapter 12: Disease of the skin and subcutaneous tissue
Chapter 13: Diseases of the musculoskeletal system and connective tissue
Chapter 14: Diseases of the genitournary system
Chapter 15: Pregnancy, Childbirth and the puerperium
Chapter 16: Certain conditions originating in the perinatal period
Chapter 17: Congenital malformations deformations and chromosomes abnormalities
Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, Not else where classified
Chapter 19: Injury poisoning and certain other consequences of external causes
Chapter 20: External causes of morbidity
Chapter 21: Factors influencing health status and contact with health services

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