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ICD-10-CM category

I48: Atrial fibrillation and flutter

12 subcodes · 9 billable · Look up any code with the ICD-10 search

Codes under I48 (Atrial fibrillation and flutter). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

CodeDescriptionBillable
I48.0Paroxysmal atrial fibrillation✓
I48.1Persistent atrial fibrillation—
I48.2Chronic atrial fibrillation—
I48.3Typical atrial flutter✓
I48.4Atypical atrial flutter✓
I48.9Unspecified atrial fibrillation and atrial flutter—
I48.11Longstanding persistent atrial fibrillation✓
I48.19Other persistent atrial fibrillation✓
I48.20Chronic atrial fibrillation, unspecified✓
I48.21Permanent atrial fibrillation✓
I48.91Unspecified atrial fibrillation✓
I48.92Unspecified atrial flutter✓

More free billing tools: all ICD-10 categories · ICD-10 search · denial codes · Medicare fees

Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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