| ICD-10-CM-2023 > I00-I99 > I20-I25 > I21 |
I20-I25 | Ischemic heart diseases | |
Use add'l | the presence of hypertension (I10-I16) | |
I21 | Acute myocardial infarction | |
Incl.: | cardiac infarction coronary (artery) embolism coronary (artery) occlusion coronary (artery) rupture coronary (artery) thrombosis infarction of heart, myocardium, or ventricle myocardial infarction specified as acute or with a stated duration of 4 weeks (28 days) or less from onset | |
Use add'l | code, if applicable, to identify: exposure to environmental tobacco smoke (Z77.22) history of tobacco dependence (Z87.891) occupational exposure to environmental tobacco smoke (Z57.31) status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility (Z92.82) tobacco dependence (F17.-) tobacco use (Z72.0) | |
Excl2.: | old myocardial infarction (I25.2) postmyocardial infarction syndrome (I24.1) subsequent type 1 myocardial infarction (I22.-) | |
I21.0 | ST elevation (STEMI) myocardial infarction of anterior wall | |
Info: | Type 1 ST elevation myocardial infarction of anterior wall | |
I21.01 | ST elevation (STEMI) myocardial infarction involving left main coronary artery | |
I21.02 | ST elevation (STEMI) myocardial infarction involving left anterior descending coronary artery | |
Info: | ST elevation (STEMI) myocardial infarction involving diagonal coronary artery | |
I21.09 | ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall | |
Info: | Acute transmural myocardial infarction of anterior wall Anteroapical transmural (Q wave) infarction (acute) Anterolateral transmural (Q wave) infarction (acute) Anteroseptal transmural (Q wave) infarction (acute) Transmural (Q wave) infarction (acute) (of) anterior (wall) NOS | |
I21.1 | ST elevation (STEMI) myocardial infarction of inferior wall | |
Info: | Type 1 ST elevation myocardial infarction of inferior wall | |
I21.11 | ST elevation (STEMI) myocardial infarction involving right coronary artery | |
Info: | Inferoposterior transmural (Q wave) infarction (acute) | |
I21.19 | ST elevation (STEMI) myocardial infarction involving other coronary artery of inferior wall | |
Info: | Acute transmural myocardial infarction of inferior wall Inferolateral transmural (Q wave) infarction (acute) Transmural (Q wave) infarction (acute) (of) diaphragmatic wall Transmural (Q wave) infarction (acute) (of) inferior (wall) NOS | |
Excl2.: | ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery (I21.21) | |
I21.2 | ST elevation (STEMI) myocardial infarction of other sites | |
Info: | Type 1 ST elevation myocardial infarction of other sites | |
I21.21 | ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery | |
Info: | ST elevation (STEMI) myocardial infarction involving oblique marginal coronary artery | |
I21.29 | ST elevation (STEMI) myocardial infarction involving other sites | |
Info: | Acute transmural myocardial infarction of other sites Apical-lateral transmural (Q wave) infarction (acute) Basal-lateral transmural (Q wave) infarction (acute) High lateral transmural (Q wave) infarction (acute) Lateral (wall) NOS transmural (Q wave) infarction (acute) Posterior (true) transmural (Q wave) infarction (acute) Posterobasal transmural (Q wave) infarction (acute) Posterolateral transmural (Q wave) infarction (acute) Posteroseptal transmural (Q wave) infarction (acute) Septal transmural (Q wave) infarction (acute) NOS | |
I21.3 | ST elevation (STEMI) myocardial infarction of unspecified site | |
Info: | Acute transmural myocardial infarction of unspecified site Transmural (Q wave) myocardial infarction NOS Type 1 ST elevation myocardial infarction of unspecified site | |
I21.4 | Non-ST elevation (NSTEMI) myocardial infarction | |
Info: | Acute subendocardial myocardial infarction Non-Q wave myocardial infarction NOS Nontransmural myocardial infarction NOS Type 1 non-ST elevation myocardial infarction | |
I21.9 | Acute myocardial infarction, unspecified | |
Info: | Myocardial infarction (acute) NOS | |
I21.A | Other type of myocardial infarction | |
I21.A1 | Myocardial infarction type 2 | |
Info: | Myocardial infarction due to demand ischemia Myocardial infarction secondary to ischemic imbalance | |
Code first | the underlying cause, such as: anemia (D50.0-D64.9) chronic obstructive pulmonary disease (J44.-) paroxysmal tachycardia (I47.0-I47.9) shock (R57.0-R57.9) | |
I21.A9 | Other myocardial infarction type | |
Info: | Myocardial infarction associated with revascularization procedure Myocardial infarction type 3 Myocardial infarction type 4a Myocardial infarction type 4b Myocardial infarction type 4c Myocardial infarction type 5 | |
Code first | , if applicable, postprocedural myocardial infarction following cardiac surgery (I97.190), or postprocedural myocardial infarction during cardiac surgery (I97.790) | |
Use add'l | complication, if known and applicable, such as: (acute) stent occlusion (T82.897-) (acute) stent stenosis (T82.855-) (acute) stent thrombosis (T82.867-) cardiac arrest due to underlying cardiac condition (I46.2) complication of percutaneous coronary intervention (PCI) (I97.89) occlusion of coronary artery bypass graft (T82.218-) | |
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