STEMI involving left anterior descending coronary artery

This code signifies an acute ST-elevation myocardial infarction (STEMI) specifically affecting the anterior wall of the heart due to an occlusion in the left anterior descending (LAD) coronary artery. This is a severe type of heart attack requiring immediate intervention to restore blood flow.

Apply this code when documentation clearly indicates an acute STEMI with electrocardiogram (ECG) changes consistent with ST elevation, and the location is specified as the anterior wall, attributed to LAD artery involvement. Supporting documentation includes ECG reports, cardiac catheterization findings, and physician notes detailing the STEMI's location and cause.

• Ensure the documentation explicitly states "ST elevation" and "left anterior descending" or "anterior wall" involvement.
• Distinguish from non-ST elevation myocardial infarction (NSTEMI) and other STEMI locations.
• Always sequence as the principal diagnosis when it is the reason for the admission.