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 | ✓ |
| I22.0 | Subsequent ST elevation (STEMI) myocardial infarction of anterior wall | ✓ |
| I22.1 | Subsequent ST elevation (STEMI) myocardial infarction of inferior wall | ✓ |
| I22.1 | Subsequent ST elevation (STEMI) myocardial infarction of inferior wall | ✓ |
| I22.2 | Subsequent non-ST elevation (NSTEMI) myocardial infarction | ✓ |
| I22.2 | Subsequent non-ST elevation (NSTEMI) myocardial infarction | ✓ |
| I22.8 | Subsequent ST elevation (STEMI) myocardial infarction of other sites | ✓ |
| I22.8 | Subsequent ST elevation (STEMI) myocardial infarction of other sites | ✓ |
| I22.9 | Subsequent ST elevation (STEMI) myocardial infarction of unspecified site | ✓ |
| I22.9 | Subsequent ST elevation (STEMI) myocardial infarction of unspecified site | ✓ |
Frequently asked questions
What is ICD-10-CM code I22?
I22 is an ICD-10-CM category covering Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction. It contains 10 more specific diagnosis codes, 10 of which are billable.
Is I22 a billable code?
No — I22 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I22.0 — Subsequent ST elevation (STEMI) myocardial infarction of anterior wall). 10 of the 10 codes under I22 are billable.
What codes fall under I22?
I22 includes I22.0, I22.0, I22.1, I22.1, I22.2, plus 5 more. See the full list with descriptions and billable status above.
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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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