ICD-10-CM · Chapter 9 · I00–I99
I49.9
Cardiac arrhythmia, unspecified
Diseases of the circulatory system
Quick facts
- Code
- I49.9
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 9 — Diseases of the circulatory system
- Category
- I49 — Other cardiac arrhythmias
- Specificity
- 4 characters
How coders use this code
ICD-10-CM I49.9 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of cardiac arrhythmia, unspecified. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in I49
- I49Other cardiac arrhythmias
- I49.0Ventricular fibrillation and flutter
- I49.01Ventricular fibrillation
- I49.02Ventricular flutter
- I49.1Atrial premature depolarization
- I49.2Junctional premature depolarization
- I49.3Ventricular premature depolarization
- I49.4Other and unspecified premature depolarization
- I49.40Unspecified premature depolarization
- I49.49Other premature depolarization
- I49.5Sick sinus syndrome
- I49.8Other specified cardiac arrhythmias
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