D3351Apexification/recalcification - Initial Visit (Apical Closure/calcific Repair of Perforations, Root Resorption, Etc.)

What This Code Covers

D3351 covers apexification/recalcification - initial visit (apical closure/calcific repair of perforations, root resorption, etc.). This procedure promotes closure of the root apex in a tooth with incomplete root development. Multiple visits may be required to change the intracanal medicament and monitor apical barrier formation.

Billing Guide

Bill this code when:

• The repair described by D3351 is performed on an existing restoration or prosthesis
• The existing device is still serviceable after the repair
• Documentation describes the defect and repair method

Do not bill this code when:

• A new restoration or prosthesis is fabricated instead of repairing the existing one
• The device type does not match this code description
• The repair is included in another code being billed at the same visit
• The procedure is better described by D3331 (Treatment of root canal obstruction; non-surgical ...)

Insurance and Denial Prevention

Key Payer Rules:

• Endodontic treatment is typically covered at 50-80% as a major service
• Some payers require pre-operative radiographs for approval
• Retreatment codes have different fee schedules than initial treatment
• Surgical endodontic procedures may require prior authorization

Common Denials and How to Respond:

• Not medically necessary - Submit radiographs showing the pathology and document the diagnosis and treatment rationale.
• Should be extraction - Provide documentation of why the tooth is restorable and worth saving.
• Bundled with final root canal - If this is an interim procedure, document separate dates of service and the clinical reason for staged treatment.