D8704Replacement of Fixed Retainer - Mandibular

What This Code Covers

D8704 covers replacement of fixed retainer - mandibular. Retention appliances or monitoring are provided to maintain tooth positions after active orthodontic movement. This phase follows completion of active treatment.

Billing Guide

Bill this code when:

• The specific replacement of fixed retainer - mandibular is fabricated and delivered as part of a fixed partial denture
• The material and metal type match the code description
• The fixed partial denture is documented with abutment and pontic tooth numbers

Do not bill this code when:

• The material or metal alloy does not match this code
• The prosthesis is implant-supported. Use the appropriate implant prosthetic code
• A single crown rather than a bridge component is being placed
• The procedure is better described by D8695 (Removal of fixed orthodontic appliances for reason...)

Insurance and Denial Prevention

Key Payer Rules:

• Orthodontic benefits are typically separate from standard dental benefits with a lifetime maximum
• Many plans require documentation of medical necessity (handicapping malocclusion)
• Age limits may apply (some plans only cover patients under 19)
• Payment is often spread over the course of treatment

Common Denials and How to Respond:

• Not medically necessary (cosmetic) - Document the functional impairment caused by the malocclusion and submit diagnostic records.
• Lifetime maximum reached - Verify the patient's remaining orthodontic benefit and discuss payment options for any balance.
• Age limit exceeded - Some plans cover adult orthodontics. Verify plan terms and appeal if appropriate.