MCMCB Pro
I20.8

I20.8Other forms of angina pectoris

Non-billable headerICD-10-CM

I20.8 is a non-billable header ICD-10-CM code for other forms of angina pectoris. It cannot be billed on its own: choose one of the more specific child codes below.

Use additional code

Add a secondary code to capture the detail described below.

  • code(s) for symptoms associated with angina equivalent

Other codes that can never be billed with I20.8

These codes carry an Excludes1 note pointing at I20.8. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading I20.8 alone.

  • I25.118Atherosclerotic heart disease of native coronary artery with other forms of angina pectoris
  • I25.708Atherosclerosis of coronary artery bypass graft(s), unspecified, with other forms of angina pectoris
  • I25.718Atherosclerosis of autologous vein coronary artery bypass graft(s) with other forms of angina pectoris
  • I25.728Atherosclerosis of autologous artery coronary artery bypass graft(s) with other forms of angina pectoris
  • I25.738Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with other forms of angina pectoris
  • I25.798Atherosclerosis of other coronary artery bypass graft(s) with other forms of angina pectoris

Risk adjustment

I20.8 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 I20.8

2 child codes. Green means billable.

Related codes at this level

Codes that share I20. If I20.8 is not quite right, the correct code is usually one of these.

Questions about I20.8

Is I20.8 a billable ICD-10-CM code?
No. I20.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I20.8 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Ischemic heart diseases (I20-I25).
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.