ICD-10-CM

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.

Image of paper and magnifying glass on blue marbled background. Says International Classification of Diseases.

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

ICD-10-CM Browser Tool is available at https://icd10cmtool.cdc.gov/

Browser tool features

Resources