Retrograde Filling Per Root - CDT Code Guide
Overview
CDT code D3430 pertains to the placement of a retrograde filling material during periradicular surgery, commonly known as an apicoectomy. This procedure is typically performed when a root canal treatment has failed, and there is a need to seal the root tip from the outside. During the surgery, the dentist accesses the root tip through the gum and bone, cleans the area, and then places a filling material to prevent further infection. This code is crucial for documenting the specific step of placing the filling material in the surgical process. It is important for both dental professionals and patients to understand that this code is used when the filling is placed in a single root. If multiple fillings are required in one root, the procedure should be reported using code D3999 with a detailed description.
When to Use This Code
- When performing an apicoectomy and a retrograde filling is necessary.
- In cases where a previous root canal treatment has failed, and infection persists.
- When there is a need to seal the root tip from the external surface during surgery.
- In situations where traditional root canal therapy cannot adequately address the infection.
- When a periapical lesion is present and requires surgical intervention.
Documentation Requirements
- Detailed clinical notes describing the need for the retrograde filling.
- Radiographic evidence supporting the necessity of the procedure.
- Documentation of the surgical procedure performed, including the materials used.
- Patient consent forms for surgical intervention.
- Post-operative care instructions provided to the patient.
Billing Considerations
When billing for D3430, ensure that the procedure is not reported more than once per root unless using D3999 for additional fillings. Common modifiers may include specifying the tooth number. Insurance plans may vary in coverage for surgical endodontic procedures, so pre-authorization is recommended.
Related CDT Codes
Frequently Asked Questions
A retrograde filling involves placing a filling material at the root tip during an apicoectomy to seal the root canal from the outside.
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