MCMedicalCodingSoftware
I49.2

I49.2: Junctional premature depolarization

Billable / specific codeICD-10-CM

I49.2 is a billable, specific ICD-10-CM code for junctional premature depolarization. It is valid for submission on a claim.

Check I49.2 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above I49.2

Not part of this code, but both may be coded when both are present.

Written on I49: Other cardiac arrhythmias

  • bradycardia NOS (R00.1)
  • neonatal dysrhythmia (P29.1-)
  • sinoatrial bradycardia (R00.1)
  • sinus bradycardia (R00.1)
  • vagal bradycardia (R00.1)

Risk adjustment

I49.2 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 238 Specified Heart Arrhythmias0.299 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.

Medicare coverage

I49.2 is named in 26 Medicare coverage policies: 26 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A54799Billing and Coding: Urine Drug Testing
  • A55001Billing and Coding: Urine Drug Testing
  • A56476Billing and Coding: Cardiac Radionuclide Imaging
  • A56602Billing and Coding: Cardiac Rhythm Device Evaluation

Alphabetic index entries that lead here

  • Depolarization, premature›junctional
  • Extrasystoles›junctional
  • Contraction, contracture, contracted›premature›junctional
  • Premature›contraction›atrioventricular
  • Premature›contraction›junctional

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I49

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.