Summary & Overview
HCPCS C7524: Coronary Angiography with Left Heart Catheterization and Flow Reserve Measurement
HCPCS Level II code C7524 denotes a complex coronary angiography procedure that includes catheter placement in the coronary arteries, imaging supervision and interpretation, left heart catheterization with ventriculography when performed, and intravascular Doppler velocity and/or pressure-derived coronary flow reserve measurement during pharmacologically induced stress for the initial coronary vessel or graft. This code captures combined diagnostic imaging and physiologic assessment used to evaluate coronary anatomy and functional flow reserve in the same encounter. Nationally, accurate use of C7524 matters for clinical documentation, appropriate procedure grouping, and alignment of hospital-based billing for high-acuity cardiac catheterization services.
Key payers covered in this national analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare and Medicare. Readers will gain a concise understanding of the clinical scope represented by C7524, the typical service and site of care, and what to expect in payer coverage discussions. The publication provides benchmarks and reporting context for utilization of combined angiographic and physiologic coronary assessments, summarizes relevant policy themes affecting hospital outpatient and catheterization lab billing, and outlines clinical context for when intravascular flow reserve measurements are performed during pharmacologic stress. Data not available in the input will be noted where applicable.
Billing Code Overview
HCPCS Level II code C7524 describes catheter placement in coronary artery(ies) for coronary angiography with associated intraprocedural injections, imaging supervision and interpretation. The description also includes left heart catheterization with intraprocedural injections for left ventriculography when performed, and an intravascular Doppler velocity and/or pressure-derived coronary flow reserve measurement for the initial coronary vessel or graft during coronary angiography performed with pharmacologically induced stress.
Service type: Diagnostic and interventional coronary angiography with physiologic coronary flow assessment during pharmacologic stress
Typical site of service: Hospital outpatient department or cardiac catheterization laboratory (inpatient or outpatient procedural setting)
Clinical & Coding Specifications
Clinical Context
A 62-year-old male with exertional chest pain, dyspnea on exertion, and a positive pharmacologic stress test is referred for invasive coronary angiography with physiologic assessment. The patient has known coronary artery disease risk factors including hypertension, hyperlipidemia, and prior percutaneous coronary intervention with a drug-eluting stent placed in the right coronary artery. The interventional cardiology team schedules the patient for cardiac catheterization in the cardiac catheterization laboratory under conscious sedation or monitored anesthesia care.
The procedure includes arterial access (commonly right radial or femoral), catheter engagement of coronary artery(ies) and contrast injections for coronary angiography, left heart catheterization with left ventriculography if indicated, and physiologic assessment using intravascular Doppler velocity and/or pressure-derived coronary flow reserve (CFR) measurement during coronary angiography. Pharmacologic stress (for example, intravenous adenosine or dobutamine) may be administered to provoke ischemia when required for CFR measurement. Imaging supervision and interpretation are performed by the attending interventional cardiologist. The team documents indications, informed consent, access site, catheter types, vessel(s) assessed, physiologic measurements, total contrast and fluoroscopy time, any procedural complications, and post-procedure disposition.
Typical site of service: Hospital-based cardiac catheterization laboratory or outpatient ambulatory surgical center with interventional cardiology capabilities.
Service type: Invasive diagnostic and physiologic coronary angiography with left heart catheterization and intravascular Doppler/pressure-derived coronary flow reserve measurement, optionally performed with pharmacologically induced stress.
Coding Specifications
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