D7840

Condylectomy - CDT Code Guide

Oral & Maxillofacial Surgery/Reduction of Dislocation and Management of Other Temporomandibular Joint Dysfunctions

Overview

CDT code D7840 refers to a condylectomy, which is the surgical removal of all or part of the mandibular condyle. This procedure is typically performed to address severe temporomandibular joint (TMJ) dysfunctions, such as chronic dislocation or ankylosis, where conservative treatments have failed. The condyle is a critical component of the jaw joint, and its removal can alleviate pain and restore function. Patients undergoing this surgery may experience significant relief from symptoms that have impacted their quality of life. Dental professionals should consider this procedure when less invasive treatments have proven ineffective, and the patient's condition warrants surgical intervention.

When to Use This Code

  • Chronic TMJ dislocation unresponsive to conservative treatment
  • Severe ankylosis of the TMJ causing functional impairment
  • Recurrent pain and dysfunction in the TMJ area
  • Pre-surgical preparation for TMJ reconstruction
  • Cases where TMJ pathology requires direct surgical intervention

Documentation Requirements

  • Detailed patient history and examination notes
  • Radiographic evidence supporting the need for surgery
  • Pre-operative and post-operative clinical notes
  • Consent forms signed by the patient
  • Operative report detailing the procedure
  • Follow-up care plan and patient instructions

Billing Considerations

When billing for D7840, ensure that the procedure is not bundled with other TMJ surgeries unless specified. Check for any frequency limitations imposed by the insurance carrier. Common modifiers such as -51 for multiple procedures may apply. Verify coverage with the patient's insurance provider, as TMJ surgeries often require prior authorization.

Related CDT Codes

Frequently Asked Questions

Recovery time can vary, but most patients can expect a few weeks of healing, with gradual improvement in function and reduction in pain.

Source: CDT 2023 © American Dental Association

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