Closed Reduction

Closed reduction is a technique for treating jaw fractures in which the surgeon manually manipulates the bone fragments back into alignment without making an incision to directly access the fracture site. Stabilization is typically achieved through intermaxillary fixation, which involves wiring the upper and lower jaws together using arch bars, splints, or elastics to hold the bones in the correct position while they heal. This approach is most appropriate for non-displaced or minimally displaced fractures where the bone ends can be adequately aligned through external manipulation and where rigid internal fixation is not clinically necessary.

For coding and billing staff, closed reduction is reported using CDT codes that differ from open reduction codes, and the reimbursement rates are correspondingly lower. For example, D7710 covers closed reduction of a mandibular fracture without fixation, while D7720 applies when intermaxillary fixation is used. The distinction between these codes matters significantly for accurate reimbursement. Billing staff must ensure the operative note clearly describes the method of reduction and the type of stabilization applied, as payers will compare the narrative to the code submitted. Any discrepancy between the documented procedure and the billed code can result in a denial or a request for additional documentation.

Closed reduction cases also require careful attention to follow-up billing. Patients with intermaxillary fixation need multiple post-operative visits for monitoring, adjustment of elastics, and eventual removal of fixation hardware. These follow-up appointments may be bundled into the original procedure fee under some payer contracts, while others allow separate billing for post-operative care beyond a defined global period. Understanding the specific payer's global surgery rules prevents both underbilling for unbundled follow-up care and overbilling that could trigger compliance concerns. As with open reduction, coordination between dental and medical insurance is frequently required when the fracture results from an accident or traumatic injury.