ICD-10-CM > I00-I99 > I20-I25 > I24 I24 Other acute ischemic heart diseases Non-Billable/Non-Specific Type 1 Excludes angina pectoris (I20.-)transient myocardial ischemia in newborn (P29.4) Type 2 Excludes non-ischemic myocardial injury (I5A) Codes I24.0Acute coronary thrombosis not resulting in myocardial infarctionI24.1Dressler's syndromeI24.8Other forms of acute ischemic heart diseaseI24.81Acute coronary microvascular dysfunctionI24.89Other forms of acute ischemic heart diseaseI24.9Acute ischemic heart disease, unspecified