CPT 75902 Imaging: Reimbursement & Policy

CPT code 75902 covers imaging supervision and interpretation provided during mechanical removal of obstructions from central venous devices. This code captures the radiologic component of procedures used to clear catheter or port occlusions—commonly thrombus or intraluminal debris—that can impair long-term venous access. Nationally, procedural imaging codes like 75902 matter because they document the imaging physician’s role in device salvage, affect billing for bundled interventional services, and inform utilization patterns for access-preserving interventions.

Key payers included in this overview are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find concise context on the clinical scenario addressed by the code, typical sites of service, and the service type captured. The publication summarizes how the code is used in practice, highlights payer coverage relevance, and identifies areas where readers should review payer-specific policies or medical necessity criteria.

This summary is intended for clinicians, coders, and policy analysts seeking a clear national overview of CPT code 75902, including clinical context, common usage settings, and the aspects of billing and coverage that influence decisions around imaging-facilitated catheter salvage procedures.

Billing Code Overview

CPT code 75902 describes imaging supervision and interpretation performed during the mechanical removal of an obstruction from a central venous device. The procedure applies when a provider uses imaging guidance to visualize and assist in clearing a blockage inside the hollow lumen of a central venous catheter or port, such as thrombus, debris, or other occlusive material.

Service type: Imaging supervision and interpretation for device intervention

Typical site of service: Interventional radiology suite or hospital procedural area

Clinical Context

A typical patient is an adult with an implanted central venous access device (port-a-cath or tunneled/hemodialysis catheter) presenting with inability to infuse or aspirate and signs of catheter occlusion. The patient may report difficulty receiving chemotherapy, total parenteral nutrition, or dialysis; the catheter has been in place for weeks to months. Initial evaluation includes catheter patency testing, bedside attempt at thrombolytic infusion (if appropriate), and review of prior imaging. When bedside measures fail or when removal of an intraluminal obstruction is required, the interventional radiology team schedules image-guided mechanical declotting.

Workflow:

Referral from oncology, nephrology, hospitalist, or emergency department after failed attempts at clearing the device.
Pre-procedure consent and history, review of anticoagulation and infection status, and site assessment.
Transport to an interventional suite with fluoroscopy capability.
Procedural team: interventional radiologist (physician), procedural nurse, radiology technologist. The physician provides imaging supervision and interpretation throughout the mechanical removal procedure.
Under fluoroscopic guidance, a guidewire and catheter are introduced and mechanical means (snare, fragmentation device, or catheter-directed thrombectomy tool) are used to remove intraluminal thrombus or other obstructive material from the central venous device.
Real-time fluoroscopic imaging is used to confirm clearance of the lumen and catheter function is reassessed by aspiration/flush.
Post-procedure monitoring for access site bleeding, embolic events, or device dysfunction and documentation of imaging findings and interpretation.

Coding Specifications

Modifier	Description	When to Use
`26`	Professional component	Use when reporting only the physician’s interpretation and supervision separate from technical services.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as planned but still performed.
`53`	Discontinued procedure	Use when the procedure is started but terminated due to patient-related or other medical reasons before completion.
`78`	Return to operating/procedure room for a related procedure during postoperative period	Use for an unplanned return to the interventional suite related to complications of the initial procedure.
`80`	Assistant surgeon	Use when an assistant surgeon actively participates and is eligible for reporting.
`81`	Minimum assistant surgeon	Use when minimal assistant involvement is documented and permitted by payer rules.
`62`	Two surgeons	Use when two surgeons work together as primary surgeons of different specialties.
`26`	Professional component	Use when billing only the interpreting physician; (included here because often applicable in imaging supervision codes).
`GA`	Waiver of liability statement on file (not in provided list)	Data not available in the input.
`QK`	Medical direction of two, three, or four ancillary personnel	Use when the physician medically directs certified registered nurse anesthetists or similar ancillary providers during the procedure.

Taxonomy Code	Specialty	Notes
336H00000X	Interventional Radiology	Primary specialty performing device declotting and imaging supervision.
2085R0200X	Vascular Surgery	Occasionally performs catheter salvage or mechanical thrombectomy of central venous devices.
207RH0000X	Diagnostic Radiology	Radiologists with interventional privileges who perform image-guided catheter procedures.
363L00000X	Nephrology	Nephrologists may coordinate care for dialysis catheter declotting but typically refer to interventionalists.
207K00000X	Surgical Oncology	May be involved when port devices placed for chemotherapy require salvage.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`T82.7XXA`	Infection and inflammatory reaction due to other cardiac and vascular devices, implants and grafts, initial encounter	Central venous device infections can present with device dysfunction and may prompt evaluation and declotting if infection is not the primary cause.
`T82.8XXA`	Mechanical complication of other vascular device, implant and graft, initial encounter	Directly relevant when a device lumen is obstructed by thrombus or mechanical failure requiring intervention.
`I82.403`	Acute embolism and thrombosis of unspecified deep veins of lower extremity, unspecified leg	Venous thromboembolic disease is associated with catheter-related thrombosis and may be present in patients needing declotting.
`I82.890`	Acute embolism and thrombosis of other specified veins	Represents venous thrombosis in atypical sites that may be associated with central venous devices.
`Z45.2`	Encounter for adjustment and management of vascular access device	Used when managing function of a long-term central venous access device, including declotting procedures.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`76000`	Fluoroscopic guidance for needle placement (eg, for central vascular access)	May be used for initial access or localization steps when additional separate fluoroscopic guidance is billed (verify payer bundling).
`36561`	Insertion of tunneled centrally inserted central venous catheter, with subcutaneous port, with cuff	Performed when placement of a new port is required after device removal or salvage attempts fail.
`36598`	Mechanical thrombectomy, percutaneous, for venous thrombosis (non-coronary)	Used when a separate percutaneous mechanical thrombectomy procedure is performed in conjunction with device declotting.
`76937`	Ultrasound guidance for vascular access (single or multiple)	Used when ultrasound guidance is employed for vascular access or localization before device manipulation.
`76937`	Ultrasound guidance for vascular access (single or multiple)	(Listed once) May be reported for ultrasound-guided access steps in the workflow.

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Summary & Overview

CPT 75902: Imaging for Mechanical Removal of Central Venous Device Occlusion