I25.83

Billable

Coronary atherosclerosis due to lipid rich plaque

HCC Category Mapping

RxHCCHCC 188 — Coronary Artery Disease and Angina

0.000

What This Code Means

A type of heart artery narrowing caused by plaque that is rich in lipids (fats), which can restrict blood flow to the heart.

Coding Tips

•This code specifies the composition of the plaque as lipid-rich, which may have different clinical implications than calcified lesions
•Document any associated symptoms or functional limitations to support medical necessity

Clinical Significance

This code identifies coronary atherosclerosis characterized by lipid-rich plaque, which is associated with higher vulnerability and increased risk of plaque rupture and acute coronary events. Lipid-rich plaques are detected through advanced imaging modalities such as intravascular ultrasound (IVUS), optical coherence tomography (OCT), or near-infrared spectroscopy (NIRS). This is an additional code used alongside a code from I25.1- for the underlying coronary disease.

Documentation Requirements

✓Advanced coronary imaging confirming lipid-rich plaque composition (IVUS, OCT, or NIRS)
✓Identification of the affected coronary artery
✓Documentation of the underlying atherosclerotic coronary disease (requires primary code from I25.1-)
✓Clinical implications for treatment planning based on plaque composition
✓Risk stratification based on vulnerable plaque characteristics

Code First

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

Commonly Confused Codes

I25.84 — Coronary atherosclerosis due to calcified coronary lesion; calcified rather than lipid-rich I25.10-I25.19 — Atherosclerotic heart disease of native coronary artery; underlying disease code, use with I25.83 I25.82 — Chronic total occlusion; describes degree of obstruction, not plaque composition I25.9 — Chronic ischemic heart disease, unspecified; non-specific, does not capture plaque type

Code Hierarchy

└I25Chronic ischemic heart disease └I25.8Other forms of chronic ischemic heart disease └I25.83Coronary atherosclerosis due to lipid rich plaque

└I25.83Coronary atherosclerosis due to lipid rich plaque