ICD-10-CM Tabular List, FY2027
98,403 codes in 22 chapters and 297 sections, effective October 1, 2026 through September 30, 2027.
A00-B99 — Certain infectious and parasitic diseases
Chapter 1 · 22 sections · 1,309 codes
C00-D49 — Neoplasms
Chapter 2 · 23 sections · 2,181 codes
D50-D89 — Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Chapter 3 · 7 sections · 403 codes
E00-E89 — Endocrine, nutritional and metabolic diseases
Chapter 4 · 10 sections · 1,270 codes
F01-F99 — Mental, Behavioral and Neurodevelopmental disorders
Chapter 5 · 11 sections · 1,113 codes
G00-G99 — Diseases of the nervous system
Chapter 6 · 11 sections · 932 codes
H00-H59 — Diseases of the eye and adnexa
Chapter 7 · 12 sections · 3,466 codes
H60-H95 — Diseases of the ear and mastoid process
Chapter 8 · 5 sections · 871 codes
I00-I99 — Diseases of the circulatory system
Chapter 9 · 10 sections · 1,807 codes
J00-J99 — Diseases of the respiratory system
Chapter 10 · 11 sections · 478 codes
K00-K95 — Diseases of the digestive system
Chapter 11 · 10 sections · 1,117 codes
L00-L99 — Diseases of the skin and subcutaneous tissue
Chapter 12 · 9 sections · 1,207 codes
M00-M99 — Diseases of the musculoskeletal system and connective tissue
Chapter 13 · 24 sections · 8,707 codes
N00-N99 — Diseases of the genitourinary system
Chapter 14 · 11 sections · 1,047 codes
O00-O9A — Pregnancy, childbirth and the puerperium
Chapter 15 · 9 sections · 3,079 codes
P00-P96 — Certain conditions originating in the perinatal period
Chapter 16 · 12 sections · 565 codes
Q00-QA1 — Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
Chapter 17 · 12 sections · 1,095 codes
R00-R99 — Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
Chapter 18 · 14 sections · 963 codes
S00-T88 — Injury, poisoning and certain other consequences of external causes
Chapter 19 · 24 sections · 54,325 codes
V00-Y99 — External causes of morbidity
Chapter 20 · 34 sections · 10,602 codes
Z00-Z99 — Factors influencing health status and contact with health services
Chapter 21 · 15 sections · 1,861 codes
U00-U85 — Codes for special purposes
Chapter 22 · 1 sections · 5 codes