D3920

Hemisection - CDT Code Guide

Endodontics/Other Endodontic Procedures

Overview

CDT code D3920 refers to the hemisection procedure, a specialized dental treatment involving the separation of a multi-rooted tooth into distinct sections. This procedure includes the removal of one or more sections, but does not encompass root canal therapy. Typically, a hemisection is performed when one root of a multi-rooted tooth is compromised due to decay or periodontal disease, but the remaining roots are healthy enough to support a restoration. This allows the dentist to preserve as much of the natural tooth structure as possible, which is beneficial for maintaining oral function and aesthetics. In clinical practice, hemisection is often considered a conservative alternative to tooth extraction and is used to prolong the life of a tooth that has both healthy and compromised roots.

When to Use This Code

  • When one root of a multi-rooted tooth is severely decayed or infected, but the other roots are healthy.
  • In cases where periodontal disease affects only one root of a multi-rooted tooth.
  • When a fracture or crack is present in one root of a multi-rooted tooth.
  • As a conservative treatment option to avoid full extraction of a multi-rooted tooth.
  • When a patient desires to maintain as much natural tooth structure as possible.

Documentation Requirements

  • Detailed clinical notes describing the condition of each root and the rationale for the hemisection.
  • Radiographic evidence supporting the need for the procedure.
  • Patient consent forms acknowledging understanding of the procedure and its implications.
  • Documentation of any sections removed and the condition of the remaining tooth structure.
  • Post-operative care instructions provided to the patient.

Billing Considerations

When billing for D3920, ensure that the procedure is not billed in conjunction with root canal therapy for the same tooth, as this code specifically excludes it. Be aware of insurance policies regarding coverage for hemisection, as some may require pre-authorization. Common modifiers may include those indicating the specific tooth number. Frequency limitations may apply, so verify with the patient's insurance provider.

Related CDT Codes

Frequently Asked Questions

No, D3920 specifically excludes root canal therapy. It only covers the hemisection and any root removal.

Source: CDT 2023 © American Dental Association

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