I48.9 Unspecified atrial fibrillation and atrial flutter

Non-billable header with 2 child codes.

Codes under I48.9

• I48.91 Unspecified atrial fibrillation
• I48.92 Unspecified atrial flutter

Code annotations containing back-references to I48.9

Back-references to I48

• Code Also: M35.81 Multisystem inflammatory syndrome ("cardiac arrhythmia (I47-I49.-)")
• Type 2 Excludes: R00 Abnormalities of heart beat ("specified arrhythmias (I47-I49)")

Nearby codes

• 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
• I48.9 Unspecified atrial fibrillation and atrial flutter (this code)
• I48.91 Unspecified atrial fibrillation
• I48.92 Unspecified atrial flutter