ICD-10-CM category
I49 Other cardiac arrhythmias
I49 is a category, not a billable code. Report one of the 10 complete codes below.
Codes in I49
- I49.01Ventricular fibrillation
- I49.02Ventricular flutter
- I49.1Atrial premature depolarization
- I49.2Junctional premature depolarization
- I49.3Ventricular premature depolarization
- I49.40Unspecified premature depolarization
- I49.49Other premature depolarization
- I49.5Sick sinus syndrome
- I49.8Other specified cardiac arrhythmias
- I49.9Cardiac arrhythmia, unspecified
Outside the US? I49 in the international WHO ICD-10 lists its inclusion and exclusion notes.
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ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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