I48.20 Chronic atrial fibrillation, unspecified
ICD-10-CM · CMS code reference
Official ICD-10-CM description: Chronic atrial fibrillation, unspecified
Coding notes
From the ICD-10-CM FY2027 (effective October 1, 2026) tabular list. Notes on a parent code or category apply here too.
Excludes1
Not coded together with this code. The exception is when the two conditions are unrelated to each other.
- Chronic persistent atrial fibrillation (I48.19)
Related codes
I48.0Paroxysmal atrial fibrillation ICD-10-CMI48.11Longstanding persistent atrial fibrillation ICD-10-CMI48.19Other persistent atrial fibrillation ICD-10-CMI48.21Permanent atrial fibrillation ICD-10-CMI48.3Typical atrial flutter ICD-10-CMI48.4Atypical atrial flutter ICD-10-CMI48.91Unspecified atrial fibrillation ICD-10-CMI48.92Unspecified atrial flutter ICD-10-CM
Common questions
Is I48.20 a billable code?
Yes. I48.20 is a billable ICD-10-CM code in the ICD-10-CM FY2027 (effective October 1, 2026) code set.