D5993Maintenance and Cleaning of a Maxillofacial Prosthesis (Extra- or Intra-oral) Other Than Required Adjustments, by Report

What This Code Covers

D5993 covers maintenance and cleaning of a maxillofacial prosthesis (extra- or intra-oral) other than required adjustments, by report. The prosthesis is modified to improve fit, comfort, or function. This may include occlusal adjustment, tissue relief, or border modification.

Billing Guide

Bill this code when:

• The prosthetic device described by D5993 is fabricated and delivered
• The clinical indication and device design are documented
• The specific prosthesis type matches the code description

Do not bill this code when:

• A different prosthesis type was delivered
• The procedure is a modification or adjustment rather than a new fabrication
• The prosthesis type does not match this code description
• The procedure is better described by D5982 (Surgical stent)

Insurance and Denial Prevention

Key Payer Rules:

• Most plans have frequency limits for denture replacement (typically once every 5-10 years)
• Relines, rebases, and repairs have separate frequency limits
• Prior authorization is commonly required for new complete and partial dentures
• Maxillofacial prosthetic codes may not be covered under standard dental plans

Common Denials and How to Respond:

• Frequency limit for replacement - Document why the current prosthesis cannot be repaired or relined and must be replaced.
• Prior authorization not obtained - Submit post-service with full documentation if prior auth was not obtained before delivery.
• Not a covered benefit - For maxillofacial prosthetics, check if coverage exists under the patient's medical plan rather than dental.