MCMCB Pro
I24.8

I24.8Other forms of acute ischemic heart disease

Non-billable headerICD-10-CM

I24.8 is a non-billable header ICD-10-CM code for other forms of acute ischemic heart disease. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • myocardial infarction due to demand ischemia (I21.A1)

Risk adjustment

I24.8 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.

Medicare coverage

I24.8 is named in 1 Medicare coverage policy 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A57174Billing and Coding: MolDX: Pharmacogenomics Testing

Code to one of these instead I24.8

2 child codes. Green means billable.

Related codes at this level

Codes that share I24. If I24.8 is not quite right, the correct code is usually one of these.

Questions about I24.8

Is I24.8 a billable ICD-10-CM code?
No. I24.8 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does I24.8 sit in the tabular list?
Diseases of the circulatory system (I00-I99), in the block Ischemic heart diseases (I20-I25).
What cannot be coded together with I24.8?
I24.8 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
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.