ICD 10 codes organized list

ICD 10 codes are organized in 22 chapters as listed below:

• 1: A00-B99 - Certain infectious and parasitic diseases
• 2: C00-D48 - Neoplasms
• 3: D50-D89 - Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
• 4: E00-E90 - Endocrine, nutritional and metabolic diseases
• 5: F01-F99 - Mental and behavioral disorders
• 6: G00-G99 - Diseases of the nervous system
• 7: H00-H59 - Diseases of the eye and adnexa
• 8: H60-H95 - Diseases of the ear and mastoid process
• 9: I00-I99 - Diseases of the circulatory system
• 10: J00-J99 - Diseases of the respiratory system
• 11: K00-K93 - Diseases of the digestive system
• 12: L00-L99 - Diseases of the skin and subcutaneous tissue
• 13: M00-M99 - Diseases of the musculoskeletal system and connective tissue
• 14: N00-N99 - Diseases of the genitourinary system
• 15: O00-O99 - Congenital malformations, deformations and chromosomal abnormalities
• 16: P00-P96 - Certain conditions originating in the perinatal period
• 17: Q00-Q99 - Congenital malformations, deformations and chromosomal abnormalities
• 18: R00-R99 - Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
• 19: S00-T98 - Injury, poisoning and certain other consequences of external causes
• 20: V01-Y98 - External causes of morbidity and mortality
• 21: Z00-Z99 - Factors influencing health status and contact with health services
• 22: U00-U99 - Codes for special purposes