D5212Mandibular Partial Denture - Resin Base (Including Any Conventional Clasps, Rests, and Teeth)

What This Code Covers

D5212 covers a mandibular (lower) removable partial denture with a resin (acrylic) base. The denture replaces some missing lower teeth while clasping onto remaining natural teeth for retention. The resin base includes conventional metal clasps, rests, and acrylic replacement teeth. This is the lower-arch equivalent of D5211.

Billing Guide

Bill this code when:

• A removable partial denture with a resin base is delivered for the lower arch
• The partial includes clasps, rests, and replacement teeth
• The patient has some remaining natural teeth in the lower arch
• The base is primarily resin, not a cast metal framework

Do not bill this code when:

• The partial has a cast metal framework. Use D5214
• The partial is for the upper arch. Use D5211 (resin) or D5213 (cast metal)
• A complete denture is being placed. Use D5120 or D5140
• A flexible partial denture material is used. Use D5226

Insurance and Denial Prevention

Key Payer Rules:

• D5212 may be used as the LEAT baseline for mandibular partial dentures
• Frequency limits and waiting periods apply the same as D5211
• Some plans require pre-authorization for partial dentures
• Extraction codes for teeth removed before partial fabrication should be on file

Common Denials and How to Respond:

• Frequency limit - Verify the date of the last partial denture. If the existing one is damaged or no longer fits, document the clinical need for replacement.
• Waiting period not met - Check the plan's effective date and waiting period for prosthodontic benefits.
• Missing teeth documentation - Submit a current radiograph or charting clearly showing the missing and remaining teeth.