Summary & Overview
CPT 29850: Arthroscopic Treatment of Proximal Tibial Fracture
CPT code 29850 designates arthroscopic management of fractures of the proximal tibia involving the intercondylar spine and/or tuberosity. The procedure is performed using an arthroscope (keyhole surgery) and may include closed manipulation but explicitly excludes the application of internal or external fixation devices. This code captures a minimally invasive operative approach to certain tibial plateau or intercondylar fractures and is relevant to orthopedic surgeons, ambulatory surgical centers, hospital outpatient units, and payers assessing surgical claims and coverage.
Key payers in typical national analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise briefing on clinical context and service setting, common claim modifiers and coding considerations where available, and pointers to related billing and policy items. The publication highlights what the code represents clinically, outlines typical sites of service, and summarizes the payer landscape and coding components that influence claim adjudication. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 29850 describes arthroscopic treatment of a fracture of the upper tibia involving the intercondylar spine and/or tuberosity. The procedure is performed with an arthroscope (keyhole surgery) and may include manipulation of the fracture site without the use of internal or external fixation devices.
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Service type: Arthroscopic fracture treatment of the proximal tibia (intercondylar spine/tuberosity)
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Typical site of service: Ambulatory surgery center or hospital outpatient department (joint/orthopedic operative setting)
Clinical & Coding Specifications
Clinical Context
A 28-year-old male presents after a fall during a soccer match with acute right knee pain, swelling, and limited weight bearing. Examination shows joint effusion and point tenderness over the tibial plateau. Knee radiographs suggest an avulsion fracture of the intercondylar eminence of the proximal tibia. The patient is scheduled for arthroscopic treatment to reduce and treat the fracture without use of internal or external fixation devices.
Preoperative workflow includes history and physical, focused knee exam, plain radiographs and often knee CT or MRI to characterize the fracture fragment and associated ligamentous injury, anesthesia evaluation, and informed consent for arthroscopy with possible open conversion. Intraoperative steps include diagnostic knee arthroscopy, visualization of the intercondylar spine/tuberosity fracture, arthroscopic reduction and debridement or fixation by suture or other non-implant techniques as appropriate, confirmation of stability, and standard arthroscopic closure. Postoperative workflow includes PACU recovery, analgesia and DVT prophylaxis as indicated, immobilization or protected weight bearing per surgeon protocol, physical therapy referral, and scheduled follow-up with radiographic reassessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Standard primary service code | Rarely used; some payors accept 00 as default when no modifier is required. |