MCMCB Pro
I70.42

I70.42Atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain

Non-billable headerICD-10-CM

I70.42 is a non-billable header ICD-10-CM code for atherosclerosis of autologous vein bypass graft(s) of the extremities with rest pain. It cannot be billed on its own: choose one of the more specific child codes below.

Includes

Conditions this code covers.

  • any condition classifiable to I70.41-
  • chronic limb-threatening ischemia NOS of autologous vein bypass graft(s) of the extremities
  • chronic limb-threatening ischemia of autologous vein bypass graft(s) of the extremities with rest pain
  • critical limb ischemia NOS of autologous vein bypass graft(s) of the extremities
  • critical limb ischemia of autologous vein bypass graft(s) of the extremities with rest pain

Risk adjustment

I70.42 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead I70.42

5 child codes. Green means billable.

Related codes at this level

Codes that share I70.4. If I70.42 is not quite right, the correct code is usually one of these.

Questions about I70.42

Is I70.42 a billable ICD-10-CM code?
No. I70.42 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I70.42 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.