Summary & Overview
CPT 29855: Arthroscopic Treatment of Tibial Plateau Fracture
CPT code 29855 denotes arthroscopic treatment of a tibial plateau fracture involving the medial or lateral tibial condyle. This minimally invasive surgical code captures cases in which a surgeon uses an arthroscope to visualize the joint and reduce or repair fracture fragments; internal fixation may or may not be employed. The code is nationally significant because tibial plateau fractures can affect mobility, require surgical management to restore joint stability, and contribute to substantial surgical and post-acute care costs.
Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for arthroscopic tibial plateau repair, typical sites of service, and the principal coverage and billing considerations that influence reimbursement and utilization. The publication summarizes common modifiers and billing practice patterns, although specific payer policy language is not reproduced here.
The report also outlines benchmarks and metrics relevant to hospitals and surgical centers, highlights policy trends affecting arthroscopic fracture care, and provides a concise guide to documentation elements that typically support use of CPT code 29855. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 29855 describes arthroscopic treatment of a tibial plateau fracture involving either the medial (inner) or lateral (outer) tibial condyle. The procedure uses an arthroscope—a small camera inserted through keyhole incisions—to visualize and treat the fracture; internal fixation devices may or may not be used as part of the repair.
Service type: Surgical — arthroscopic fracture repair of the knee (tibial plateau)
Typical site of service: Hospital outpatient department or ambulatory surgery center, with select cases performed in an inpatient setting depending on clinical complexity and comorbidities.
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 42-year-old male presents after a fall from a bicycle with acute left knee pain, swelling, and inability to bear weight. Imaging (AP/lateral knee radiographs and CT) demonstrates a depressed lateral tibial plateau fracture with intra-articular extension and displacement. The orthopedic surgeon schedules an operative arthroscopic-assisted reduction and internal fixation to visualize the joint, reduce articular fragments, address meniscal or chondral injury, and place percutaneous screws or plates as needed.
The clinical workflow typically includes preoperative evaluation and imaging, informed consent discussing arthroscopic-assisted fracture fixation, general or regional anesthesia in an ambulatory surgery center or hospital operating room, diagnostic arthroscopy to assess and manage intra-articular pathology, arthroscopic reduction of the tibial plateau fragment with fluoroscopic guidance, and optional internal fixation (screws/plates). Postoperative care includes recovery room monitoring, weight-bearing restrictions per fixation stability, physical therapy initiation, and outpatient follow-up with repeat imaging.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
51 | Multiple Procedures | When additional distinct procedures (e.g., open ORIF of tibial shaft) are performed at the same session in addition to arthroscopic tibial plateau treatment. |