Myocardial Infarction (MI) Quick Reference
In this example, the second MI occurs within four weeks of the first, so it is a subsequent MI coded from category I22. The patient is admitted for the new MI, so the subsequent MI is the first‐listed code, followed by the initial MI code. Code I21.4, Non‐ST elevation (NSTEMI) myocardial infarction, is used for non‐ST elevation MI and
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