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I21.09 - ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall


The ICD 10 Code for ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall is listed as I21.09.
Additional information concerning this code and description can be found below including ICD 9 crosswalks / GEMS, chapter information, and DRGs where available.

ICD 10 CM Field Value
Diagnosis Code: I21.09
Description: ST elevation (STEMI) myocardial infarction involving other coronary artery of anterior wall
  • 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
Diagnostic Related Groups
(MS-DRG v30.0)
222 - Cardiac Defib Implant W Cardiac Cath W Ami/hf/shock W Mcc
223 - Cardiac Defib Implant W Cardiac Cath W Ami/hf/shock W/o Mcc
224 - Cardiac Defib Implant W Cardiac Cath W/o Ami/hf/shock W Mcc
225 - Cardiac Defib Implant W Cardiac Cath W/o Ami/hf/shock W/o Mcc
226 - Cardiac Defibrillator Implant W/o Cardiac Cath W Mcc
227 - Cardiac Defibrillator Implant W/o Cardiac Cath W/o Mcc
280 - Acute Myocardial Infarction, Discharged Alive W Mcc
281 - Acute Myocardial Infarction, Discharged Alive W Cc
282 - Acute Myocardial Infarction, Discharged Alive W/o Cc/mcc
283 - Acute Myocardial Infarction, Expired W Mcc
284 - Acute Myocardial Infarction, Expired W Cc
285 - Acute Myocardial Infarction, Expired W/o Cc/mcc
Chapter Diseases of the circulatory system (I00-I99)
Block Ischemic heart diseases (I20-I25)
Parent I21.0 - ST elevation (STEMI) myocardial infarction of anterior wall
ICD-9-CM Diagnosis Codes General Equivalence Mappings (GEMS):
ICD 9 Dx Code: 410.01 - Acute myocardial infarction of anterolateral wall, initial episode of care (approximate)
ICD 9 Dx Code: 410.11 - Acute myocardial infarction of other anterior wall, initial episode of care (approximate)
ICD-10-CM Siblings (same level / similar specificity) of I21.09:
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