MCMedicalCodingSoftware
I27.849

I27.849: Fontan related circulation, unspecified

Billable / specific codeICD-10-CM

I27.849 is a billable, specific ICD-10-CM code for fontan related circulation, unspecified. It is valid for submission on a claim.

Check I27.849 with the rest of the claim: free scrubber

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I27.849 is named in 13 Medicare coverage policies: 13 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56476Billing and Coding: Cardiac Radionuclide Imaging
  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
  • A56625Billing and Coding: Echocardiography
  • A56691Billing and Coding: Cardiac Computed Tomography & Angiography (CCTA)

Alphabetic index entries that lead here

  • Circulation›Fontan related

Code history

  • addedFY2024-FY2027

    Fontan related circulation, unspecified

Other codes under I27.84

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.