Summary & Overview
CPT 93459: Coronary Angiography with Left Heart Catheterization and Bypass Graft Imaging
CPT code 93459 represents a comprehensive diagnostic cardiac catheterization procedure, including coronary angiography, left heart catheterization, and bypass graft angiography. This procedure is essential for evaluating coronary artery disease, assessing bypass graft patency, and guiding clinical decision-making in cardiology. Nationally, this code is recognized by major payers such as Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, reflecting its widespread clinical and billing relevance.
This publication provides an in-depth overview of 93459, covering payer coverage, clinical indications, and recent policy updates. Readers will gain insight into typical sites of service, common clinical scenarios, and associated diagnoses, including cardiac amyloidosis, myocardial infarction, and various forms of heart failure. The analysis also highlights related CPT codes for similar procedures, offering context for coding and billing distinctions. Key modifiers used in reporting this service are also discussed, ensuring clarity on professional and distinct procedural components.
Healthcare professionals, administrators, and policy analysts will find benchmarks, coding guidance, and payer policy trends relevant to diagnostic cardiac catheterization. The summary equips readers with the latest information on coverage, clinical context, and procedural details for 93459, supporting accurate reporting and understanding of this critical cardiology service.
CPT Code Overview
CPT code 93459 is used to report catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation. This code also includes left heart catheterization with intraprocedural injection(s) for left ventriculography, when performed, and catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography.
Service type: Cardiology — Diagnostic cardiac catheterization procedures
Typical site of service: Hospital outpatient or inpatient facility settings, often designated as POS 22 or 21.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario involves an adult patient with a history of coronary artery bypass graft surgery presenting with symptoms suggestive of myocardial ischemia, such as chest pain or shortness of breath. The patient may have underlying conditions like heart failure or suspected myocardial infarction. The clinical workflow includes hospital admission (either inpatient or outpatient), evaluation by a cardiologist, and scheduling for diagnostic cardiac catheterization. The procedure described by CPT code 93459 involves catheter placement in the coronary arteries and bypass grafts, intraprocedural injections for angiography, and left heart catheterization with possible left ventriculography. Imaging supervision and interpretation are performed during the procedure to assess graft patency, coronary anatomy, and ventricular function.
Coding Specifications
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Modifiers:
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26: Used when reporting only the professional component of imaging supervision and interpretation. Applicable when the provider does not own the equipment or facility. - Modifier
59: Indicates a distinct procedural service, used when the procedure is separate and distinct from other services performed on the same day.
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Provider Taxonomies:
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