I22
Subsequent ST elevation (STEMI) and non-ST elevation (NSTEMI) myocardial infarction
Not billable — category only FY2026 2025-10-01 → 2026-09-30
Exclusions 12 never code together
I22code
I00-I99chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
- systemic connective tissue disorders (M30-M36)M30-M36
- transient cerebral ischemic attacks and related syndromes (G45.-)G45.-
Excludes1 — never code together. The excluded condition and this one are mutually exclusive.
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 19
I22code
Includes
- acute myocardial infarction occurring within four weeks (28 days) of a previous acute myocardial infarction, regardless of site
- cardiac infarction
- coronary (artery) embolism
- coronary (artery) occlusion
- coronary (artery) rupture
- coronary (artery) thrombosis
- infarction of heart, myocardium, or ventricle
- recurrent myocardial infarction
- reinfarction of myocardium
- rupture of heart, myocardium, or ventricle
- subsequent type 1 myocardial infarction
Use additional code
- code, if applicable, to identify:
- exposure to environmental tobacco smoke (Z77.22)Z77.22Z77.22Z77.22
- history of tobacco dependence (Z87.891)Z87.891Z87.891Z87.891
- occupational exposure to environmental tobacco smoke (Z57.31)Z57.31Z57.31Z57.31
- status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82)Z92.82Z92.82Z92.82
- tobacco dependence (F17.-)F17.-F17.-F17.-
- tobacco use (Z72.0)Z72.0Z72.0Z72.0
Index entries leading here filed at null
No alphabetic index entry points at this code.
Subordinate codes 5
Medications 1
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.