What to know
ICD-10-CM—the International Classification of Diseases, Tenth Revision, Clinical Modification—is used to code and classify medical diagnoses. ICD-10-CM is based on ICD-10, the system used to code and classify mortality data from death certificates. Use our free tool to search for ICD-10-CM codes.
Introduction
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. ICD-10-CM builds on ICD-10 (the International Classification of Diseases, Tenth Revision)— the system used to code causes of death on death certificates.
CDC's National Center for Health Statistics (NCHS) is responsible for the clinical modification of ICD-10 for use in the United States. The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM. All modifications to ICD-10 must conform to WHO's established ICD structure and conventions.
Find ICD-10-CM codes
NCHS provides a user-friendly, no-cost Browser Tool for the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM). It includes updates from each year since the launch of ICD-10-CM.
The browser tool allows users to:
- Search ICD-10-CM by code
- Search the ICD-10-CM Index by main term or sub-terms
- Search in a particular fiscal year update to find the right code for a specific date of service
- Toggle between Index and Tabular lists
- Find instructional information needed to understand ICD-10-CM codes
NCHS adds all approved code set updates to the ICD-10-CM Browser Tool.
Search ICD-10-CM Codes
Browser tool features
- Official ICD-10-CM Coding Guidelines and Preface
- ICD-10-CM Browser Tool User Guide
- ICD-10-CM Tabular List of Diseases and Injuries
- ICD-10-CM Index to Diseases and Injuries
- ICD-10-CM External Cause of Injuries Index
- ICD-10-CM Table of Neoplasms
- ICD-10-CM Table of Drugs and Chemicals
Resources
- ICD-10-PCS: View and download the procedure coding system developed by the Centers for Medicare and Medicaid Services
- ICD-9-CM: Find information about the previous ICD clinical modification
- ICD-10-CM and ICD-10-PCS transition: Get information and resources about the transition to the latest revisions
- Classification of Death and Injury Resulting from Terrorism: Visit the CDC Archive to learn how ICD-10 and ICD-10-CM codes were added after the terrorist attacks of September 11, 2001