Free Medical Coding > ICD10 CM > 2024 ICD-10-CM Codes > 2024 ICD-10-CM Codes I00-I99 – Diseases of the circulatory system (I00-I99) > 2024 ICD-10-CM Codes I30-I5A – Other forms of heart disease (I30-I5A) > 2024 ICD-10-CM Codes I48 – Atrial fibrillation and flutter (I48)