I48.2

Non-billable

Chronic atrial fibrillation

I48.2 is the ICD-10-CM code for Chronic atrial fibrillation. It is a non-billable category code — use a more specific child code such as I48.20 for billing.

Status
Header (non-billable)
Chapter
I00-I99
Parent
I48
Subcodes
2
Edition
FY2026

I00-I99 Diseases of the circulatory system

What this means — in plain language

MedlinePlus · NIH

What is atrial fibrillation (AFib)? Atrial fibrillation, also known as AFib or AF, is one of the most common types of arrhythmias . Arrhythmias are problems with the rate or rhythm of your heartbeat. They can cause your heart to beat too slowly, too fast, or in an irregular way. If you have AFib, your heart beats irregularly and sometimes much faster than normal. Also, your heart's upper and lower chambers do not…

Read more about Atrial Fibrillation at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

No additional coding notes for this code.

Medications indicated for this condition

FDA labeling

Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.

Conditions mapped to this code

MedlinePlus · NIH

Plain-language health-topic references grounded in MedlinePlus (NIH/NLM).

Frequently asked questions

What is ICD-10 code I48.2?
I48.2 is the ICD-10-CM code for "Chronic atrial fibrillation". It falls under I00-I99 Diseases of the circulatory system.
Is I48.2 a billable code?
No — I48.2 is a non-billable header code. Use a more specific child code (such as I48.20) for billing.
What are the subcodes of I48.2?
I48.2 has 2 more specific child codes, including I48.20, I48.21.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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