Summary & Overview
CPT 21452: Mandible Fracture Repair with External Fixation
CPT code 21452 denotes surgical external fixation of a fractured mandible. This code captures procedures in which a surgeon makes small skin incisions to access a lower jaw fracture and secures an external fixation device or splint to stabilize the mandible. The code is relevant nationally because mandibular fractures from blunt facial trauma are common in emergency and surgical practice and have implications for resource use across acute care settings.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the code, typical sites of service, and an overview of common billing considerations. The publication highlights benchmarks and payment policy context where available, describes clinical scenarios that support use of the code, and summarizes documentation elements typically associated with surgical mandibular fixation procedures.
This national overview is intended to help coding, billing, and clinical teams understand when CPT code 21452 is applicable, how it fits into acute surgical workflows, and which payers commonly cover procedures of this type. Data not available in the input is noted as such elsewhere in the publication.
Billing Code Overview
CPT code 21452 describes surgical treatment of a fractured mandible (lower jaw) using external fixation. The procedure involves small skin incisions to access the fracture site and placement of an external fixation device or splint to stabilize the bone while it heals.
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Service type: Surgical fixation of mandibular fracture via external fixation
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Typical site of service: Operating room or procedure suite in an inpatient or outpatient surgical setting
Clinical & Coding Specifications
Clinical Context
A 28-year-old male presents to the emergency department after an assault with blunt facial trauma. The patient reports jaw pain, malocclusion, and difficulty opening the mouth. On exam there is localized swelling and point tenderness along the body of the mandible. Maxillofacial CT demonstrates a displaced mandibular body fracture requiring stabilization. Under general anesthesia in the operating room, the oral and maxillofacial surgeon makes small skin incisions, reduces the fracture segments, and applies an external fixation device (external mandibular splint) to stabilize the mandible. Intraoperative fluoroscopy and postoperative plain radiographs confirm acceptable alignment. The patient is recovered in post-anesthesia care and discharged with wound care instructions and scheduled follow-up for device removal and occlusal assessment.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased procedural services | Use when work required is substantially greater than typical for 21452 (e.g., multiple fractures, extensive soft-tissue injury) and documentation supports increased work. |
23 |