I70.641 — Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of thigh
I70.641 is a billable, specific ICD-10-CM code for atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of thigh. It is valid for submission on a claim.
Risk adjustment
I70.641 risk-adjusts. Under the CMS-HCC V28 model it maps to these categories:
- HCC 263 Atherosclerosis of Arteries of the Extremities with Ulceration or Gangrene1.118 RAF
- HCC 383 Chronic Ulcer of Skin, Except Pressure, Not Specified as Through to Bone or Muscle0.646 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
I70.641 is named in 38 Medicare coverage policies — 38 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53058Billing and Coding: Home Health Physical Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
How I70.641 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 I70.641.
- Arteriosclerosis, arteriosclerotic›extremities›bypass graft›nonbiological graft›leg›left›with›ulceration›thigh
- Arteriosclerosis, arteriosclerotic›with›critical limb ischemia›bypass graft›nonbiological graft›leg›left›with›ulceration›thigh
Related codes at this level
Codes that share I70.64. If I70.641 is not quite right, the correct code is usually one of these.
- I70.642Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of calf
- I70.643Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of ankle
- I70.644Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of heel and midfoot
- I70.645Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of other part of foot
- I70.648Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of other part of lower leg
- I70.649Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of unspecified site
Questions about I70.641
- Is I70.641 a billable ICD-10-CM code?
- Yes. I70.641 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does I70.641 sit in the tabular list?
- Diseases of the circulatory system (I00-I99), in the block Diseases of arteries, arterioles and capillaries (I70-I79).