MCMCB Pro
I70.263

I70.263Atherosclerosis of native arteries of extremities with gangrene, bilateral legs

Billable / specific codeICD-10-CMbilateral

I70.263 is a billable, specific ICD-10-CM code for atherosclerosis of native arteries of extremities with gangrene, bilateral legs. It is valid for submission on a claim.

Risk adjustment

I70.263 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 263 Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene1.118 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

I70.263 is named in 57 Medicare coverage policies 57 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
  • A52996Billing and Coding: Routine Foot Care
  • A53057Billing and Coding: Home Health Occupational Therapy
  • A53064Billing and Coding: Outpatient Occupational Therapy

How I70.263 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 I70.263.

  • Arteriosclerosis, arterioscleroticextremitieslegbilateralwithgangrene(and intermittent claudication, rest pain and ulcer)
  • Arteriosclerosis, arterioscleroticwithcritical limb ischemialegbilateralwithgangrene(and intermittent claudication, rest pain, and ulcer)

Related codes at this level

Codes that share I70.26. If I70.263 is not quite right, the correct code is usually one of these.

Questions about I70.263

Is I70.263 a billable ICD-10-CM code?
Yes. I70.263 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does I70.263 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.