D7991

Coronoidectomy - CDT Code Guide

Oral & Maxillofacial Surgery/Other Repair Procedures

Overview

CDT code D7991 refers to the surgical procedure known as coronoidectomy, which involves the removal of the coronoid process of the mandible. This procedure is typically performed by an oral and maxillofacial surgeon and is often necessary when there is restricted mandibular movement due to hyperplasia or other pathological conditions affecting the coronoid process. The coronoid process is a triangular projection on the anterior part of the mandible, and its removal can help restore normal jaw function and alleviate pain. This surgery is generally considered when non-surgical treatments have failed to improve the patient's condition.

When to Use This Code

  • Patients with restricted mandibular movement due to coronoid hyperplasia.
  • Cases where the coronoid process is causing impingement on the zygomatic arch.
  • Patients experiencing chronic pain due to abnormal growth of the coronoid process.
  • When conservative treatments for limited jaw opening have been ineffective.
  • In preparation for other reconstructive or corrective jaw surgeries.

Documentation Requirements

  • Detailed clinical notes describing the patient's symptoms and diagnosis.
  • Pre-operative imaging studies, such as X-rays or CT scans, showing the condition of the coronoid process.
  • A surgical report outlining the procedure performed, including the technique and any complications.
  • Post-operative care instructions and follow-up plans.
  • Patient consent forms for surgical intervention.

Billing Considerations

When billing for D7991, it's important to verify coverage with the patient's insurance provider, as some plans may require prior authorization. Consider using appropriate modifiers if the procedure is performed in conjunction with other surgeries. Be aware of any frequency limitations imposed by the insurance carrier and document all clinical justifications thoroughly to support the necessity of the procedure.

Related CDT Codes

Frequently Asked Questions

A coronoidectomy is performed to remove the coronoid process of the mandible, typically to improve jaw function and alleviate pain caused by conditions like coronoid hyperplasia.

Source: CDT 2023 © American Dental Association

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