Summary & Overview
CPT 36566: Tunneled Central Venous Catheter Insertion
CPT code 36566 identifies the insertion of a tunneled central venous access device/catheter whose tip terminates in a central vein or the right atrium. As a commonly used durable vascular access procedure for long-term intravenous therapy, hemodialysis adjuncts, or frequent blood sampling, this code represents significant utilization across inpatient and outpatient procedural settings and is important for facility and physician billing workflows. Key national payers covered in this discussion include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. This publication explains the clinical and billing context for CPT code 36566, including service type, typical sites of service, and common coding considerations. Readers will find concise benchmarks on payer coverage patterns and authorization practices where available, a summary of clinical indications and procedural context, and notes on modifiers and billing scenarios relevant to tunneled central venous catheter insertion. Data not available in the input are identified explicitly. The guidance is intended for coding, billing, and policy audiences seeking a national overview of CPT code 36566 and related administrative considerations.
Billing Code Overview
CPT code 36566 describes insertion of a central venous access device/catheter where the catheter tip terminates in a central vein (brachiocephalic/innominate, iliac, subclavian, superior or inferior vena cava, or the right atrium). The procedure includes placement of the device beneath the skin to allow blood draws or administration of medications and nutrients. The description notes a tunneling technique, in which a long catheter is placed subcutaneously between the vein entry site and the external access site.
Service type: Central venous access device insertion (tunneled catheter placement)
Typical site of service: Hospital operating room, interventional radiology suite, or ambulatory surgical center
Clinical & Coding Specifications
Clinical Context
A 62-year-old patient with advanced malignancy and poor peripheral venous access presents for placement of a tunneled central venous catheter for long-term chemotherapy and repeated blood draws. The interventional radiology team coordinates pre-procedure consent, review of imaging (chest radiograph or ultrasound), and assessment of coagulation status. On the day of service the patient is brought to a procedure suite or interventional radiology suite; moderate sedation or monitored anesthesia care may be provided depending on comorbidities. Under ultrasound and fluoroscopic guidance, the physician creates a subcutaneous tunnel from the intended venous entry site to an exit site on the chest wall, inserts the catheter with the tip positioned in the superior vena cava or right atrium, and secures a cuff and external access port. Post-procedure chest radiograph confirms tip location and absence of pneumothorax. The device is then used for administration of chemotherapy, parenteral nutrition, or frequent laboratory sampling as clinically indicated.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | When reporting only the physician’s professional service separate from technical components if applicable (rare for this procedure). |
50 |