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I28.8

I28.8Other diseases of pulmonary vessels

Billable / specific codeICD-10-CM

I28.8 is a billable, specific ICD-10-CM code for other diseases of pulmonary vessels. It is valid for submission on a claim.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Pulmonary arteritis
  • Pulmonary endarteritis
  • Rupture of pulmonary vessels
  • Stenosis of pulmonary vessels
  • Stricture of pulmonary vessels

Risk adjustment

I28.8 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 226 Heart Failure, Except End Stage and Acute0.360 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.

Medicare coverage

I28.8 is named in 9 Medicare coverage policies 9 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A52850Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56414Billing and Coding: Endovenous Stenting
  • A56500Billing and Coding: Cardiac Catheterization and Coronary Angiography
  • A56625Billing and Coding: Echocardiography

How I28.8 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 I28.8.

  • Arteritispulmonary
  • Endarteritispulmonary
  • Ulcer, ulcerated, ulcerating, ulceration, ulcerativeendocarditis(acute) (chronic) (subacute)
  • Dilatationpulmonaryartery(idiopathic)
  • Endarteritisobliteranspulmonary
  • Rupture, rupturedarterypulmonary
  • Rupture, rupturedpulmonaryartery
  • Rupture, rupturedpulmonaryvein
  • Rupture, rupturedpulmonaryvessel
  • Rupture, rupturedvesselpulmonary
  • Stenosis, stenoticpulmonaryacquired
  • Stenosis, stenoticpulmonaryvein, acquired

Related codes at this level

Codes that share I28. If I28.8 is not quite right, the correct code is usually one of these.

Questions about I28.8

Is I28.8 a billable ICD-10-CM code?
Yes. I28.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I28.8 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).
ICD-10-CMFY2026-Apr· effective April 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.