I21.4
Non-ST elevation (NSTEMI) myocardial infarction
Applicable To
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Acute subendocardial myocardial infarction
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Non-Q wave myocardial infarction NOS
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Nontransmural myocardial infarction NOS
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Type 1 non-ST elevation myocardial infarction
Approximate Synonyms
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Acute non-st segment elevation myocardial infarction
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Heart attack
Clinical Information
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A myocardial infarction in the absence of observable q wave abnormalities in the ecg.
Details
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I21.4 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
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The 2023 edition of ICD-10-CM I21.4 became effective on October 1, 2022.
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This is the American ICD-10-CM version of I21.4 – other international versions of ICD-10 I21.4 may differ.