CPT 93458: Imaging Supervision and Interpretation for Coronary Angiography
Medicare pays $699 and commercial payers pay $3112 on average nationally for this procedure.
CPT code 93458 describes the imaging supervision and interpretation component for a coronary angiography performed with left heart catheterization and intraprocedural injections for left ventriculography; the service is diagnostic cardiac imaging supervision and interpretation typically provided in an inpatient or outpatient hospital catheterization laboratory or cardiac catheterization suite to assess coronary artery disease and arterial stenosis.
For related coverage guidance, see recent payer policy updates: Cardiac Computed Tomography (CCT)/Coronary Computed Tomographic Angiography (CCTA), Cardiovascular Disease Risk Assessment, Biomarkers for Myocardial Infarction and Chronic Heart Failure.
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National Reimbursement Benchmarks
Across national payers, Medicare's mean rate for CPT 93458 sits near $698.70, while BUCA’s average commercial mean is considerably higher at $3,112.20, indicating a sizable gap between Medicare and BUCA averages for this service. Blue Cross Blue Shield and BUCA drive the high end of commercial reimbursements, while Aetna and Medicare cluster lower, creating a clear bifurcation between traditional Medicare-level payments and several commercial payers.
Dispersion measured as the interquartile range (P75 minus P25) varies notably: Blue Cross Blue Shield shows the widest IQR at $4,733.60, signaling high variability among its rates. BUCA’s IQR is $3,068.00 and UnitedHealth Group’s IQR is $921.30, both substantial but smaller than Blue Cross Blue Shield. Cigna (IQR $937.8) and Aetna (IQR $678.0) are comparatively tighter, with Aetna presenting the narrowest IQR among national commercial payers in this set.