Guidelines › STEMI and NSTEMI
STEMI and NSTEMI
Official text from the FY2027 ICD-10-CM Official Guidelines for Coding and Reporting. The wording is quoted exactly.
Guidelines I.C.9.e.1; I.C.9.e.2; I.C.9.e.3
“If a type 1 NSTEMI evolves to STEMI, assign the STEMI code. If a type 1 STEMI converts to NSTEMI due to thrombolytic therapy, it is still coded as STEMI.”
“Code I21.9, Acute myocardial infarction, unspecified, is the default for unspecified acute myocardial infarction or unspecified type.”
“If an AMI is documented as nontransmural or subendocardial, but the site is provided, it is still coded as a subendocardial AMI.”
Where this applies
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