D7640

Mandible Closed Reduction - CDT Code Guide

Oral & Maxillofacial Surgery/Treatment of Closed Fractures

Overview

CDT Code D7640 refers to the closed reduction of a mandible fracture, a procedure performed without the need for an incision. This treatment is typically employed when a patient has sustained a fracture to the mandible, or lower jaw, and the alignment can be corrected without surgical exposure. The process involves immobilizing the teeth, if present, to stabilize the fracture and promote healing. This procedure is crucial in scenarios where the fracture is non-displaced or minimally displaced, allowing for natural healing without invasive surgery. Dental professionals often encounter this situation in cases of trauma, such as sports injuries or accidents, where quick and effective treatment is essential to restore function and aesthetics.

When to Use This Code

  • Non-displaced mandible fracture from a sports injury
  • Minimally displaced fracture due to a fall
  • Trauma-induced fracture where surgical exposure is not required
  • Fracture in a patient with existing dental structures that can be immobilized
  • Cases where patient health precludes invasive surgical procedures

Documentation Requirements

  • Detailed patient history and trauma description
  • Radiographic evidence of the fracture
  • Clinical notes on the decision to opt for closed reduction
  • Documentation of immobilization technique used
  • Post-procedure care instructions
  • Follow-up plan and expected healing timeline

Billing Considerations

When billing for D7640, ensure that the procedure is clearly documented as a closed reduction without incision. Be aware of any frequency limitations set by the insurance provider. Common modifiers such as -52 for reduced services may apply if the procedure is less extensive than usual. Verify with the patient's insurance for coverage details, as some plans may have specific requirements for oral surgery procedures.

Related CDT Codes

Frequently Asked Questions

D7640 is used for closed reduction without incision, while D7630 involves interosseous fixation, which requires surgical exposure.

Source: CDT 2023 © American Dental Association

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