I48 ATRIAL FIBRILLATION AND FLUTTER

Code Information

• Diagnosis Code: I48
• Short Description: Atrial fibrillation and flutter
• Long Description: Atrial fibrillation and flutter
• Code Version: 2025 ICD-10-CM

The code I48 is NOT VALID for claim submission

Code Classification

• Diseases of the circulatory system (I00–I99)
  • Other forms of heart disease (I30-I5A)
    • Atrial fibrillation and flutter (I48)