Summary & Overview
CPT 21406: Open Repair of Orbital Fracture
CPT code 21406 denotes surgical assessment and open repair of an orbital fracture through an incision directly over the fracture site, excluding blind ‘‘blowout’’ repairs. This code reflects definitive operative management for orbital rim or lateral orbital fractures caused most often by blunt trauma and is relevant to trauma, maxillofacial, and otolaryngology surgical practice nationally. Payers commonly covering this service in comparative analyses include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare.
Readers will find clinical context on the procedure type and typical settings (hospital operating room or ambulatory surgery center), as well as coverage and billing considerations pertinent to major national payers. The publication outlines national benchmark perspectives, common billing modifiers and documentation points, and where policy updates or payer-specific rules may affect claims adjudication. Data not available in the input is noted where applicable. This summary is intended to orient clinicians, coding professionals, and policy analysts to the clinical purpose and payer landscape for CPT code 21406.
Billing Code Overview
CPT code 21406 describes assessment and surgical treatment of a fracture of the orbit (the bony structure that supports the eye) when the injury is managed through a direct incision over the fracture site and does not involve a blowout fracture. The procedure typically involves open reduction and internal fixation or direct repair of orbital rim or lateral orbital fractures.
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Service type: Surgical repair of orbital fracture (open approach)
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Typical site of service: Hospital operating room or ambulatory surgery center
Clinical & Coding Specifications
Clinical Context
A 34-year-old male presents to the emergency department after an assault with blunt facial trauma. He reports periorbital swelling, diplopia on upward gaze, diminished extraocular movement, and localized tenderness over the infraorbital rim. Facial CT confirms a non–blowout fracture of the orbital rim and lateral orbital wall without globe rupture. After emergency evaluation by the emergency physician and ophthalmology to exclude globe injury, an oculoplastic or facial trauma surgeon schedules operative repair under general anesthesia. The workflow includes preoperative imaging review, informed consent, preoperative antibiotics per facility protocol, an incision directly over the fractured orbital rim, reduction of displaced bony fragments, fixation using plates and screws as indicated, intraoperative assessment of ocular motility, and postoperative instructions with follow-up for wound care and ophthalmologic evaluation.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
26 | Professional component | Use when reporting only the surgeon’s professional component separate from technical services billed by the facility. |
50 | Bilateral procedure | Use when identical procedures are performed on both left and right orbits during the same operative session. |