STEMI (ST-Elevation Myocardial Infarction) ICD-10-CM Codes

Dive into the 2023 ICD codes for STEMI. Understand this severe heart attack type's codes, billability, and clinical relevance.

By Nate Lacson on Aug 8, 2025.

Fact Checked by RJ Gumban.

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What ICD Codes Are Used for STEMI?

When addressing STEMI, it's essential to be familiar with the specific STEMI ICD codes for accurate clinical documentation and billing. STEMI is a type of heart attack caused by a complete blockage in a coronary artery. Here are some commonly used ICD codes related to this condition:

I21.0 - ST elevation (STEMI) myocardial infarction of anterior wall: This code is used for cases where the STEMI affects the heart's anterior wall.
I21.1 - ST elevation (STEMI) myocardial infarction of inferior wall: Represents cases diagnosed with STEMI affecting the heart's inferior wall.

Using the right codes ensures that patients receive the appropriate care and that healthcare providers are reimbursed accurately.

Which STEMI ICD Codes Are Billable?

All the ICD codes mentioned for STEMI are typically billable as they represent specific medical conditions that require intervention. Proper documentation is crucial to ensure accurate billing and prevent potential discrepancies.

Clinical Information

STEMI has specific clinical characteristics:

It's a severe type of heart attack resulting from prolonged blockage of blood supply in the heart.
Symptoms include chest pain, shortness of breath, nausea, and cold sweats.
Immediate medical attention is crucial to restore blood flow and minimize heart damage.
Treatment options include medications, angioplasty, and stenting.
Regular monitoring and lifestyle changes can help prevent future occurrences.

Synonyms Include:

ST-Elevation Heart Attack
Major Heart Attack
Acute Myocardial Infarction with ST-Elevation
Complete Heart Blockage
Coronary Artery Blockage

Commonly asked questions

STEMI is caused by a complete coronary artery blockage, usually due to a blood clot formed on a plaque rupture.

STEMI is diagnosed using an electrocardiogram (ECG) that shows ST elevation, indicating damage to the heart muscle.

Both are types of heart attacks, but STEMI involves a complete blockage of a coronary artery, while NSTEMI involves a partial blockage.

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