I25.84

Billable

Coronary atherosclerosis due to calcified coronary lesion

HCC Category Mapping

RxHCCHCC 188 — Coronary Artery Disease and Angina

0.000

What This Code Means

A type of heart artery narrowing where the plaque buildup has hardened with calcium deposits, making the blockage more rigid and potentially more difficult to treat.

Coding Tips

•This code indicates calcification of the coronary lesion, which is clinically distinct from lipid-rich plaques
•May be relevant for interventional cardiology procedures; document imaging findings that confirm calcification

Clinical Significance

This code identifies coronary atherosclerosis with calcified lesions, which presents specific challenges for revascularization. Heavily calcified coronary lesions may require specialized interventional techniques such as rotational atherectomy, orbital atherectomy, or intravascular lithotripsy. This is an additional code used with I25.1- for the underlying coronary disease and helps convey the technical complexity of the patient's coronary pathology.

Documentation Requirements

✓Imaging evidence of coronary artery calcification (catheterization, CT coronary calcium scoring, or intravascular imaging)
✓Documentation of the underlying atherosclerotic coronary artery disease (requires primary code from I25.1-)
✓Identification of the affected coronary artery or arteries
✓Clinical relevance of calcification to treatment planning
✓Consideration of specialized interventional approaches if revascularization is planned

Code First

coronary atherosclerosis (I25.1-, I25.7-, I25.81-)

Commonly Confused Codes

I25.83 — Coronary atherosclerosis due to lipid rich plaque; different plaque composition I25.82 — Chronic total occlusion; describes obstruction degree, not plaque composition I25.10-I25.19 — Atherosclerotic heart disease of native coronary artery; underlying disease code, use with I25.84 I25.85 — Chronic coronary microvascular dysfunction; microvessel disease, not epicardial calcification

Code Hierarchy

└I25Chronic ischemic heart disease └I25.8Other forms of chronic ischemic heart disease └I25.84Coronary atherosclerosis due to calcified coronary lesion

└I25.84Coronary atherosclerosis due to calcified coronary lesion