I49.1

ICD-10Billable

Atrial premature depolarization

Official ICD-10-CM descriptor (FY2026)

Atrial premature depolarization

I49.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

Atrial premature beats

Related codes in I49

I49.0Ventricular fibrillation and fluttercategory
I49.2Junctional premature depolarization
I49.3Ventricular premature depolarization
I49.4Other and unspecified premature depolarizationcategory
I49.5Sick sinus syndrome
I49.8Other specified cardiac arrhythmias
I49.9Cardiac arrhythmia, unspecified

Where this code sits

Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: Other forms of heart disease (I30-I5A)
Parent code: I49

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.