I27.841 — Fontan-associated lymphatic dysfunction
I27.841 is a billable, specific ICD-10-CM code for fontan-associated lymphatic dysfunction. It is valid for submission on a claim.
Risk adjustment
I27.841 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Medicare coverage
I27.841 is named in 20 Medicare coverage policies — 20 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A56476Billing and Coding: Cardiac Radionuclide Imaging
- A56476Billing and Coding: Cardiac Radionuclide Imaging
- A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
How I27.841 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to I27.841.
- Dysfunction›lymphatic›Fontan-associated
- Circulation›Fontan related›with›Fontan-associated lymphatic dysfunction
Related codes at this level
Codes that share I27.84. If I27.841 is not quite right, the correct code is usually one of these.
Questions about I27.841
- Is I27.841 a billable ICD-10-CM code?
- Yes. I27.841 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I27.841 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Pulmonary heart disease and diseases of pulmonary circulation (I26-I28).