MCMCB Pro
I70.31

I70.31Atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication

Non-billable headerICD-10-CM

I70.31 is a non-billable header ICD-10-CM code for atherosclerosis of unspecified type of bypass graft(s) of the extremities with intermittent claudication. It cannot be billed on its own: choose one of the more specific child codes below.

Risk adjustment

I70.31 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 I70.31

5 child codes. Green means billable.

Related codes at this level

Codes that share I70.3. If I70.31 is not quite right, the correct code is usually one of these.

Questions about I70.31

Is I70.31 a billable ICD-10-CM code?
No. I70.31 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I70.31 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.