Summary & Overview
CPT 92979: Intravascular Imaging Add-On for Coronary Vessels
CPT code 92979 denotes an add-on intravascular imaging procedure performed during coronary interventions, using intravascular ultrasound (IVUS) or optical coherence tomography (OCT) to visualize additional coronary vessels or previously placed grafts and to interpret and report those images. This code matters nationally because intravascular imaging guides stent placement and therapeutic decision-making, affecting procedural quality, outcomes, and downstream resource use.
Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of clinical intent and service context, a summary of common modifiers and administrative considerations, and linkage to related procedural and billing themes. The publication outlines benchmarks and coverage patterns where available, clarifies typical site-of-service coding (cardiac catheterization laboratory), and situates CPT code 92979 within intraprocedural imaging workflows.
This summary equips clinicians, billing professionals, and policy analysts with a clear understanding of what CPT code 92979 represents, why it is used during coronary interventions, and what topics to review next — including payer coverage nuances, coding relationships, and where to find additional clinical or policy guidance. Data not available in the input are noted explicitly in detailed sections.
Billing Code Overview
CPT code 92979 describes an add-on intravascular imaging procedure in which the provider advances a catheter into an additional coronary vessel or a previously placed graft and uses ultrasound or optical coherence tomography to visualize the extent of blockage, stent placement, or other intracoronary findings. The procedure includes interpretation of the acquired images and reporting of the results. Use of CPT code 92979 is intended to report imaging of the initial vessel when this add-on imaging is performed after the first vessel.
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Service type: Intravascular/diagnostic imaging adjunct to coronary intervention
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Typical site of service: Cardiac catheterization laboratory or other invasive cardiac procedural setting
Clinical & Coding Specifications
Clinical Context
A 68-year-old male with unstable angina is taken to the cardiac catheterization lab for coronary angiography and possible percutaneous coronary intervention (PCI). After angiographic evaluation, the interventional cardiologist places a guiding catheter and advances a wire and balloon/stent in the primary target vessel. Because there is concern for additional disease in a second coronary artery graft, the provider performs intravascular imaging using intravascular ultrasound (IVUS) or optical coherence tomography (OCT) in an additional coronary vessel or previously placed graft to define lesion length, stent apposition, and residual stenosis. The provider advances the imaging catheter into the additional vessel/graft, acquires images before and/or after therapeutic intervention, interprets the images, documents measurements (minimal lumen area, percent stenosis), and includes findings in the procedural report.
Typical site of service: hospital catheterization laboratory or ambulatory surgical center during a diagnostic coronary angiography/PCI admission or visit.
Service type: add-on intravascular imaging of an additional coronary vessel or graft performed during the same session as coronary angiography/PCI.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when billing only the physician interpretation portion of a separately payable imaging service. |