D2750Crown, Porcelain Fused to High Noble Metal

What This Code Covers

D2750 covers a full-coverage crown made of porcelain fused to a high noble metal substructure. High noble metal means the alloy contains at least 60% noble metal content, with gold making up 40% or more of the composition. The porcelain exterior provides a tooth-like appearance while the metal framework underneath provides strength and a precise fit. This code covers the entire crown procedure: tooth preparation, impressions, fabrication of a temporary crown, and cementation of the final lab-fabricated restoration. Lab fees are included in the procedure and should not be billed separately to the payer.

Billing Guide

Bill this code when:

• A full-coverage crown with porcelain fused to high noble metal is placed on a natural tooth
• The metal alloy meets ADA classification for high noble (60% or more noble metal, 40% or more gold)
• The crown is a single unit, not a retainer for a fixed bridge
• The crown is the final restoration, not a temporary or provisional crown

Do not bill this code when:

• The crown is all-ceramic with no metal substructure. Use D2740 for an all-porcelain or all-ceramic crown
• The metal is base metal (less than 25% noble content). Use D2751 for porcelain fused to base metal
• The metal is noble but not high noble (25-60% noble content). Use D2752 for porcelain fused to noble metal
• The crown is placed on an implant abutment. Use D6750 for an implant-supported PFM crown

Insurance and Denial Prevention

Key Payer Rules:

• Crowns are classified as major restorative and typically covered at 50% after deductible
• Most plans impose a waiting period of 6-12 months for major services on new enrollees
• Crown replacement frequency limits are common, usually once every 5-10 years per tooth
• Many payers require pre-authorization for crowns. Submit radiographs, clinical photos, and a narrative with the pre-treatment estimate
• Some plans apply an alternative benefit and will only cover the crown at the base metal (D2751) rate, with the patient paying the difference for high noble metal
• Lab metal receipts may be requested to verify the alloy classification matches the code billed

Common Denials and How to Respond:

• Crown replaced within the plan's frequency limit -> Appeal with radiographs and clinical notes showing the existing crown has failed (fracture, recurrent decay, poor margins). Explain why replacement before the frequency period is clinically necessary
• Downgraded to D2751 (base metal) or D2752 (noble metal) -> This is typically a plan design issue. Collect the difference from the patient. Appeal only if high noble was clinically required, such as for patients with known sensitivities to base metal alloys
• Pre-authorization not obtained -> Submit the claim with full documentation retroactively. Include a narrative explaining why pre-authorization was not obtained (emergency, patient in pain, risk of further damage)
• Tooth does not meet criteria for a crown -> Appeal with detailed radiographs, photos, and narrative showing that the remaining tooth structure is insufficient for a direct restoration. Reference the extent of decay, fracture lines, or prior restoration failure