I25.3

HCC Category Mapping

What This Code Means

An abnormal bulging or weakening of the heart wall that can potentially rupture.

Coding Tips

• •Distinguish between true aneurysm and pseudoaneurysm in documentation
• •Specify location (ventricular, septal) and whether it is contained or ruptured if this information is available

Clinical Significance

Aneurysm of the heart refers to an abnormal outpouching or thinning of the cardiac wall, most commonly the left ventricle, usually resulting from a prior myocardial infarction. Ventricular aneurysms can serve as a nidus for thrombus formation, cause arrhythmias, and contribute to heart failure. Despite clinical significance, this code does not map to any HCC in V24 or V28.

Documentation Requirements

• ✓Documentation of cardiac aneurysm with specification of location (ventricular, septal)
• ✓Imaging confirmation (echocardiogram, cardiac magnetic resonance imaging, or ventriculography)
• ✓Whether the aneurysm is a true aneurysm versus a pseudoaneurysm
• ✓Size of the aneurysm if documented
• ✓Associated complications (thrombus, arrhythmia, heart failure)
• ✓Etiology (typically post-myocardial infarction)

Commonly Confused Codes