ICD-10-CM 2027 Code Lookup

Search and browse all 74,879 billable ICD-10-CM diagnosis codes valid for October 1, 2026 – September 30, 2027. Updated with the official FY2027 release from CDC/NCHS.

What’s new in ICD-10-CM 2027 (190 new codes) ICD-10 code for… (A–Z)

ICD-10-CM chapters

#ChapterCodesBillable
1Certain infectious and parasitic diseasesA00-B991,068
2NeoplasmsC00-D491,730
3Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanismD50-D89324
4Endocrine, nutritional and metabolic diseasesE00-E89973
5Mental, Behavioral and Neurodevelopmental disordersF01-F99872
6Diseases of the nervous systemG00-G99700
7Diseases of the eye and adnexaH00-H592,677
8Diseases of the ear and mastoid processH60-H95653
9Diseases of the circulatory systemI00-I991,433
10Diseases of the respiratory systemJ00-J99366
11Diseases of the digestive systemK00-K95863
12Diseases of the skin and subcutaneous tissueL00-L991,001
13Diseases of the musculoskeletal system and connective tissueM00-M996,687
14Diseases of the genitourinary systemN00-N99838
15Pregnancy, childbirth and the puerperiumO00-O9A2,481
16Certain conditions originating in the perinatal periodP00-P96463
17Congenital malformations, deformations, chromosomal abnormalities, and genetic disordersQ00-QA1900
18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R99774
19Injury, poisoning and certain other consequences of external causesS00-T8841,187
20External causes of morbidityV00-Y997,461
21Factors influencing health status and contact with health servicesZ00-Z991,425
22Codes for special purposesU00-U853

About ICD-10-CM

ICD-10-CM (International Classification of Diseases, 10th Revision, Clinical Modification) is the diagnosis code set used on every U.S. healthcare claim. Codes are 3 to 7 characters long: the first three characters form the category, and additional characters add detail such as anatomic site, laterality, severity or encounter type.

Only billable codes – codes with no further subdivisions – may be reported on claims. Header codes (categories and subcategories that have children) must be coded to the highest level of specificity. The FY2027 code set takes effect on October 1, 2026.

Source: CDC National Center for Health Statistics, ICD-10-CM FY2027 files. For reference only – always follow the official guidelines and payer policies.