10ICD Code Hub

I48

Header — not billable

Atrial fibrillation and flutter

The ICD-10 code for atrial fibrillation and flutter is I48.

I48 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 6 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under I48

Related codes in this category