I70.643 — Atherosclerosis of nonbiological bypass graft(s) of the left leg with ulceration of ankle

Risk adjustment

I70.643 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

I70.643 is named in 39 Medicare coverage policies — 37 listing it as supporting medical necessity, and 2 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

• A56566Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
• A57067Billing and Coding: Outpatient Physical and Occupational Therapy Servicesnot covered
• A53057Billing and Coding: Home Health Occupational Therapy
• A53058Billing and Coding: Home Health Physical Therapy