I21.4 Non-ST elevation (NSTEMI) myocardial infarction

Coding Notes

Active
Billable, valid for HIPAA-covered transactions

Applicable To

Acute subendocardial myocardial infarction
Non-Q wave myocardial infarction NOS
Nontransmural myocardial infarction NOS
Type 1 non-ST elevation myocardial infarction

GEM Conversion to ICD-9 CM


MDC / MS-DRG Reference


Back Reference of Diagnostic Codes

Infarct, infarction
myocardium, myocardial (acute) (with stated duration of 4 weeks or less) I21.9
subendocardial (acute) (nontransmural) I21.4
Necrosis, necrotic (ischemic) See also Gangrene

Sibling Codes


Parent Sibling Codes


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Code Title
I00-I99 Diseases of the circulatory system (I00-I99)
I20-I25 Ischemic heart diseases (I20-I25)
I21 Acute myocardial infarction
I21.4 Non-ST elevation (NSTEMI) myocardial infarction
Applicable to
Acute subendocardial myocardial infarction
Non-Q wave myocardial infarction NOS
Nontransmural myocardial infarction NOS
Type 1 non-ST elevation myocardial infarction