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I21.21 – ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery

ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery

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I21.21 – STEMI involving left circumflex coronary artery
Andrew Saurin

Medicare CPT / Coverage Preview

Medicare CPT / Coverage Preview
ICD-10: I21.21
Raw ICD: I2121
Context: I21.21 – ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery
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Title

I21.21 – ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery

Description

ST elevation (STEMI) myocardial infarction involving left circumflex coronary artery

Category

Diseases of the Circulatory System

copy

I21.21 – STEMI involving left circumflex coronary artery

ICD-10-CM Code

I21.21

Raw ICD Code

I2121

Code Range

I00-I99

Billable / Valid

Valid/Billable

CDC Order Number

11622

Source Year

FY2026

Effective Date

October 1, 2025

Import Batch

icd10cm-fy2026-batch04-of30