I24.8Other forms of acute ischemic heart disease

I24.8 is the ICD-10-CM diagnosis code for other forms of acute ischemic heart disease. It belongs to category I24 (other acute ischemic heart diseases), block I20-I25 (ischemic heart diseases) and chapter 9 (diseases of the circulatory system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within I24, choose I24.8 (Other forms of acute ischemic heart disease) only when documentation doesn't support a more specific option: acute coronary thrombosis not resulting in myocardial infarction (I24.0), Dressler's syndrome (I24.1) and acute ischemic heart disease, unspecified (I24.9).

To report this condition, pick the subcode that matches the documentation: I24.81 (dysfunction) and I24.89 (disease).

Don't report I24.8 together with the conditions in its Excludes1 note: myocardial infarction due to demand ischemia (I21.A1).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2024 (expanded into subcodes).

Before ICD-10, this condition was coded in ICD-9-CM as 411.89 (other acute and subacute forms of ischemic heart disease, other).