Summary & Overview
CPT 93572: Coronary Physiology Measurement with Doppler or Pressure Wire
CPT code 93572 is an add-on procedural code for invasive physiologic assessment of coronary arteries or bypass grafts during coronary angiography using a Doppler or pressure wire; it is reported for each additional vessel after the first. This service, which may include pharmacologic stress to increase blood flow, provides clinicians with objective hemodynamic data such as fractional flow reserve (FFR) or coronary flow reserve (CFR) to guide revascularization decisions. Nationally, these measurements influence care pathways for patients with ischemic heart disease and affect utilization patterns in catheterization laboratories.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The analysis covers coverage trends and coding practice implications across commercial and public payers.
Readers will find a concise explanation of the clinical context and service setting, typical billing considerations for an add-on vessel-based measurement, and the types of benchmarks and policy updates that commonly affect adoption and reimbursement. Where payer-specific data are not provided in the input, the publication notes that "Data not available in the input." The content is intended for health system billing leads, cardiology administrators, and policy analysts seeking a national overview of coding and clinical relevance for invasive coronary physiologic assessment.
Billing Code Overview
CPT code 93572 describes measurement of blood flow and pressure in a coronary artery or bypass graft during coronary angiography using a Doppler or pressure wire. The service may include pharmacologic stress testing to augment coronary flow. This add-on code is reported for each additional vessel after the first when these physiologic assessments are performed.
Service type: Invasive diagnostic physiologic assessment during coronary angiography
Typical site of service: Hospital inpatient or outpatient cardiac catheterization laboratory; ambulatory surgical center when available
Clinical & Coding Specifications
Clinical Context
A 64-year-old male with exertional chest pain, positive stress imaging and prior history of hypertension and hyperlipidemia is scheduled for diagnostic coronary angiography with physiologic assessment of coronary lesions. During left heart catheterization, after visual angiographic assessment identifies intermediate stenoses in multiple coronary arteries, the interventional cardiologist advances a pressure and/or Doppler flow wire to measure fractional flow reserve (FFR) and/or coronary flow reserve (CFR). Pharmacologic hyperemia (adenosine infusion) may be administered to induce maximal blood flow while measurements are recorded. The initial vessel measurement is reported with the primary FFR/CFR code; 93572 is billed for each additional vessel measured beyond the first.
Workflow steps:
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The patient arrives to an outpatient cardiac catheterization laboratory or inpatient/interventional suite with informed consent and pre-procedure evaluation completed.
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Vascular access is obtained (radial or femoral) and diagnostic coronary angiography is performed to identify target lesions.
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A pressure or Doppler flow wire is prepared and advanced across the lesion; baseline and hyperemic measurements are obtained.
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If multiple vessels require physiologic assessment, the first vessel is reported with the primary code and
93572is appended for each additional vessel using appropriate modifiers. -
Procedural documentation includes vessel(s) measured, measurements obtained, drugs used for hyperemia, complications, and device identifiers.