Find policies, billing codes, payers, states, and providers
CPT 93459: Coronary Angiography with Left Heart Catheterization
CPT code 93459 represents coronary angiography performed with left heart catheterization, a core diagnostic procedure for evaluating coronary artery disease and left ventricular function. Nationally, this code is central to cardiac diagnostic workflows, guiding decisions about revascularization, device implantation, and acute ischemic care. It is commonly billed for patients with suspected or known coronary artery disease, acute coronary syndromes, heart failure evaluations, and pre-operative cardiac assessment.
Key payers in the coverage landscape include Aetna, Blue Cross Blue Shield, Cigna Health, United Healthcare, and Medicare. Readers will find an overview of clinical context for use of the code, comparisons to closely related CPT codes such as 93458 and 93460, and discussion of common billing scenarios and documentation elements that influence payment and medical necessity reviews. The publication highlights national policy considerations, relevant diagnosis groupings tied to coverage determinations, and benchmarks for utilization patterns where available. It also outlines areas subject to payer edits or LCD guidance to help billing and compliance teams align coding and documentation with payer expectations.
This summary is written for a national audience and provides clinicians, coding professionals, and healthcare administrators with a concise reference to the clinical purpose, payer environment, and operational considerations surrounding CPT code 93459.
Customize your policy alerts
Sign up for cpt 93459 policy alerts
Get alerted when payer policies referencing 93459 are released or updated.
Monitor payer policy activity
Billing Code Overview
CPT code 93459 describes coronary angiography with left heart catheterization. In this procedure a provider inserts a catheter into an artery (commonly the femoral or radial artery), advances it to the left side of the heart, and injects contrast dye to image the coronary arteries. The operator supervises image acquisition and interprets the angiographic images to identify vessel narrowing or occlusion and assess left ventricular function. The description notes injection into the left ventricle and prior bypass grafts when necessary.
Service type: Diagnostic and interventional cardiac catheterization procedure
Typical site of service: Cardiac catheterization laboratory or hospital-based interventional suite, with vascular access commonly obtained at the groin (femoral artery) or arm (radial artery).
National Reimbursement Benchmarks
Commercial averages run notably above Medicare for CPT 93459: Blue Cross Blue Shield, Cigna, UnitedHealth Group, Aetna and BUCA all present mean rates higher than Medicare’s mean of $751.80, with BUCA’s average commercial mean sitting at $3,149.00 — roughly $2,397.20 higher than Medicare. This highlights a sizable gap between Medicare reimbursement and mid-to-high commercial payers for this service.
Dispersion (P75–P25) varies widely across payers. Blue Cross Blue Shield shows one of the widest interquartile spreads at $4,777.20 (P75 $6,586.80 minus P25 $1,809.60), while Aetna’s spread is comparatively tighter at $735.00 (P75 $1,179.00 minus P25 $444.00). Cigna and UnitedHealth Group have similar mid-to-high dispersion levels ($1,027.80 and $959.10 respectively), and BUCA’s IQR is $3,122.00 (P75 $4,412.90 minus P25 $1,290.90), indicating substantial variation among commercial contracts.