ICD-10-CM chapters
All 22 chapters of the FY2027 ICD-10-CM Tabular List.
- A00-B99Chapter 1: Certain infectious and parasitic diseases22 blocks
- C00-D49Chapter 2: Neoplasms21 blocks
- D50-D89Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism7 blocks
- E00-E89Chapter 4: Endocrine, nutritional and metabolic diseases10 blocks
- F01-F99Chapter 5: Mental, Behavioral and Neurodevelopmental disorders11 blocks
- G00-G99Chapter 6: Diseases of the nervous system11 blocks
- H00-H59Chapter 7: Diseases of the eye and adnexa12 blocks
- H60-H95Chapter 8: Diseases of the ear and mastoid process5 blocks
- I00-I99Chapter 9: Diseases of the circulatory system10 blocks
- J00-J99Chapter 10: Diseases of the respiratory system11 blocks
- K00-K95Chapter 11: Diseases of the digestive system10 blocks
- L00-L99Chapter 12: Diseases of the skin and subcutaneous tissue9 blocks
- M00-M99Chapter 13: Diseases of the musculoskeletal system and connective tissue20 blocks
- N00-N99Chapter 14: Diseases of the genitourinary system11 blocks
- O00-O9AChapter 15: Pregnancy, childbirth and the puerperium9 blocks
- P00-P96Chapter 16: Certain conditions originating in the perinatal period12 blocks
- Q00-QA1Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders12 blocks
- R00-R99Chapter 18: Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified14 blocks
- S00-T88Chapter 19: Injury, poisoning and certain other consequences of external causes22 blocks
- V00-Y99Chapter 20: External causes of morbidity30 blocks
- Z00-Z99Chapter 21: Factors influencing health status and contact with health services15 blocks
- U00-U85Chapter 22: Codes for special purposes1 blocks