ICD-10-CM Codes 2026 (USA)

• I48.91	Unspecified atrial fibrillation

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

Created by Peter Blahut, MD