MCMCB Pro
I70.621

I70.621Atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, right leg

Billable / specific codeICD-10-CMright

I70.621 is a billable, specific ICD-10-CM code for atherosclerosis of nonbiological bypass graft(s) of the extremities with rest pain, right leg. It is valid for submission on a claim.

Risk adjustment

I70.621 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 264 Vascular Disease with Complications0.455 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

I70.621 is named in 31 Medicare coverage policies 31 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56232Billing and Coding: Foot Care
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing
  • A56423Billing and Coding: Cardiology Non-emergent Outpatient Stress Testing

How I70.621 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 I70.621.

  • Arteriosclerosis, arterioscleroticwithcritical limb ischemiabypass graftnonbiological graftlegright
  • Arteriosclerosis, arterioscleroticextremitiesbypass graftnonbiological graftlegrightwithrest pain(and intermittent claudication)
  • Arteriosclerosis, arterioscleroticwithcritical limb ischemiabypass graftnonbiological graftlegrightwithrest pain(and intermittent claudication)

Related codes at this level

Codes that share I70.62. If I70.621 is not quite right, the correct code is usually one of these.

Questions about I70.621

Is I70.621 a billable ICD-10-CM code?
Yes. I70.621 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I70.621 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).
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.