Chapter index for the 2025 version of the ICD-10 Clinical Modification specification. Browse the specification's chapters, sections, and diagnosis codes, along with each code's billable status, notations, version history, and more.
ICD serves a broad range of uses globally and provides critical knowledge on the extent, causes and consequences of human disease and death worldwide via data that is reported and coded with the ICD.
Use our free tool to search for ICD-10-CM codes. ICD-10-CM (the International Classification of Diseases, Tenth Revision, Clinical Modification) is a standardized system used to code diseases and medical conditions (morbidity) data. Healthcare providers use ICD-10-CM codes when diagnosing patients.
2026 ICD-10-CM Codes A00-B99 Certain infectious and parasitic diseases C00-D49 Neoplasms D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism E00-E89