I22: Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction

Codes under I22 (Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.

Code	Description	Billable
I22.0	Subsequent ST elevation (STEMI) myocardial infarction of anterior wall	✓
I22.1	Subsequent ST elevation (STEMI) myocardial infarction of inferior wall	✓
I22.2	Subsequent non-ST elevation (NSTEMI) myocardial infarction	✓
I22.8	Subsequent ST elevation (STEMI) myocardial infarction of other sites	✓
I22.9	Subsequent ST elevation (STEMI) myocardial infarction of unspecified site	✓

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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.

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