D5611Repair Resin Partial Denture Base, Mandibular

What This Code Covers

D5611 covers the repair of a broken or cracked resin (acrylic) base on a mandibular (lower) partial denture. The repair restores the partial denture to functional condition by rejoining the broken base material. This code applies to resin-base partials; repairs to cast metal framework components use different codes.

Billing Guide

Bill this code when:

• The resin base of a lower partial denture is cracked or broken and needs repair
• The broken base material is rejoined with acrylic or repair material
• The repair restores the partial denture to a functional condition
• The damaged component is the resin base (not a clasp, tooth, or metal framework)

Do not bill this code when:

• A complete lower denture base is repaired. Use D5511
• An upper partial denture base is repaired. Use D5610
• A partial denture tooth is replaced. Use D5640 or D5650
• A clasp is repaired or replaced. Use D5640
• The partial needs replacement rather than repair

Insurance and Denial Prevention

Key Payer Rules:

• D5611 is typically covered without the same frequency limits as denture replacement
• Most payers allow repairs as needed
• If the partial has been repaired multiple times, the payer may suggest replacement
• The repair code is distinct from tooth replacement, clasp repair, and reline codes

Common Denials and How to Respond:

• Should be replaced - Document that the repair is sufficient to restore function and the overall partial condition is serviceable.
• Wrong code - Verify the component being repaired (base vs. clasp vs. tooth) and the arch (mandibular vs. maxillary) to select the correct code.
• Bundled with other repair - If multiple repairs are done (e.g., base repair plus tooth replacement), each is a separate code and should be billed on its own line item.