D2921Reattachment of Tooth Fragment, Incisal Edge or Cusp

What This Code Covers

D2921 covers reattachment of tooth fragment, incisal edge or cusp. The original tooth fragment is bonded back to the tooth using adhesive techniques. This conservative approach preserves natural tooth structure when the fragment is intact and available.

Billing Guide

Bill this code when:

• The procedure described by D2921 is performed and documented
• The clinical indication supports the procedure
• Documentation meets the payer's requirements for the service

Do not bill this code when:

• A different procedure was actually performed
• The procedure is included in another code being billed at the same visit
• Documentation does not support the medical necessity of the procedure
• The procedure is better described by D2910 (Re-cement or re-bond inlay, onlay, veneer or parti...)

Insurance and Denial Prevention

Key Payer Rules:

• Most plans cover restorative procedures at 50-80% depending on the specific service
• Downgrades may apply (e.g., porcelain crown downgraded to base metal on posterior teeth)
• Waiting periods often apply for major restorative services on new plans
• Some plans require prior authorization for crowns and indirect restorations

Common Denials and How to Respond:

• Material downgrade - The payer covers an alternate material at a lower fee. Bill the actual code and let the patient know about the potential balance.
• Waiting period not met - Verify the patient's plan effective date and any waiting periods for major services.
• Tooth not restorable - Submit radiographs and clinical documentation showing the tooth can be successfully restored.