Which ICD 10 CM Code Reports Type 3 Acute MI?

Which ICD 10 CM Code Reports Type 3 Acute MI? For MI types 3, 4a, 4b, 4c, and 5, you’ll use I21. A9 (Other myocardial infarction type). Type 3 involves sudden cardiac death, type 4 is PCI-related, and type 5 is CABG-related. What is the ICD-10 code for acute MI? Acute myocardial infarction, unspecified I21.