Every ICD-10-CM code, and whether you can actually bill it
74,879 billable codes and 23,524 header codes for FY2027, with the Excludes1 conflicts, sequencing rules and specificity warnings that decide whether a claim is paid. Built directly from the CMS and CDC/NCHS release.
190 new codes, 15 that stop being billable
The FY2027 update subdivides 15 existing codes into more specific ones. Those codes stay in the classification but can no longer be submitted — the most common cause of October denials. See every change with its replacement code →
Browse by chapter
The 22 chapters of the Tabular List, covering 98,403 codes in 297 sections.
- A00-B99Certain infectious and parasitic diseases
- C00-D49Neoplasms
- D50-D89Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- E00-E89Endocrine, nutritional and metabolic diseases
- F01-F99Mental, Behavioral and Neurodevelopmental disorders
- G00-G99Diseases of the nervous system
- H00-H59Diseases of the eye and adnexa
- H60-H95Diseases of the ear and mastoid process
- I00-I99Diseases of the circulatory system
- J00-J99Diseases of the respiratory system
- K00-K95Diseases of the digestive system
- L00-L99Diseases of the skin and subcutaneous tissue
- M00-M99Diseases of the musculoskeletal system and connective tissue
- N00-N99Diseases of the genitourinary system
- O00-O9APregnancy, childbirth and the puerperium
- P00-P96Certain conditions originating in the perinatal period
- Q00-QA1Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders
- R00-R99Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified
- S00-T88Injury, poisoning and certain other consequences of external causes
- V00-Y99External causes of morbidity
- Z00-Z99Factors influencing health status and contact with health services
- U00-U85Codes for special purposes