I44.1

ICD-10Billable

Atrioventricular block, second degree

Official ICD-10-CM descriptor (FY2026)

Atrioventricular block, second degree

I44.1 is valid for submission on a claim — CMS flags it as a billable, specific code.

Inclusion terms

  • Atrioventricular block, type I and II
  • Möbitz block, type I and II
  • Second degree block, type I and II
  • Wenckebach's block

Related codes in I44

Where this code sits

Parent code
I44

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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.

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