D2752 is the CDT code for a crown made of porcelain fused to a noble metal substructure (PFM) — a full-coverage restoration with a tooth-colored porcelain surface bonded to a noble-alloy core. It's distinguished from other PFM crowns purely by the metal content of the underlying alloy.
Informational only — confirm the official CDT descriptor and your payers' rules independently. This is general guidance, not billing, coding, or clinical advice.
When to Use the D2752 Code
Report D2752 when a tooth is restored with a porcelain-fused-to-metal crown whose substructure is a noble alloy — by the CDT/ADA definition, an alloy containing at least 25% noble metal (gold, palladium, or platinum) but not meeting the high-noble threshold. Common indications are those of any PFM crown: a large failing restoration, a fracture or crack, extensive decay a filling can't support, or full coverage after a root canal.
Pick the PFM code by alloy content, not appearance:
- D2752 — porcelain fused to noble metal (this code).
- D2750 — porcelain fused to high noble metal.
- D2751 — porcelain fused to predominantly base metal.
Don't confuse D2752 with an all-ceramic crown (D2740), which has no metal core, or a full cast crown (D2790), which has no porcelain. The noble code sits between high-noble and base-metal PFM, so accurate alloy documentation is what separates D2752 from its neighbors.
Documentation & Clinical Scenarios
Crowns are a frequently reviewed benefit, so documentation should clearly justify full coverage:
- Tooth number and the reason a crown — not a filling — is needed (extent of decay or fracture, prior root canal, cusp involvement, failing large restoration).
- Pre-operative radiograph(s) and often intraoral photos of the tooth.
- A narrative explaining why the tooth is restorable and why full coverage is necessary.
- Dates — preparation and seat/delivery dates, since many payers tie the benefit to the seat date.
Because D2752 is defined by alloy, record the noble-metal content from the lab so the code matches the substructure delivered. Keep supporting evidence in the chart in case of a post-payment review.
Insurance & Billing Tips
- Pre-authorize when in doubt. Many plans recommend or require a pre-estimate for crowns, with radiographs and photos attached.
- Expect possible down-coding. Plans often apply an alternate benefit, reimbursing any crown at a base-metal rate, so a noble alloy may leave a patient portion.
- Check frequency and waiting periods. Crowns commonly carry a replacement frequency limit (every 5–7 years per tooth) and may have a waiting period on new plans.
- Confirm the benefit date rule. Whether the plan pays on the prep date or the seat date affects claims that span a benefit-year boundary.
- Bill buildups separately. A core buildup (D2950) or post-and-core is its own procedure when clinically necessary.
Example Case
A 55-year-old patient needs a crown on an endodontically treated molar, and the dentist selects a PFM crown with a noble alloy to balance strength and cost. The office verifies benefits, learns the plan applies a base-metal alternate benefit with a 5-year frequency, and submits a pre-estimate with a radiograph and photo. The crown is prepped and later seated, and the claim is filed as D2752 with the seat date and the alloy noted. Because benefits were verified, the patient's estimate already reflected the alternate-benefit difference.
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Frequently Asked Questions
What's the difference between D2752, D2750, and D2751?
Only the alloy in the metal substructure. D2752 uses a noble alloy (at least 25% noble metal), D2750 uses a high noble alloy (at least 60% noble, 40%+ gold), and D2751 uses a predominantly base metal. All three are porcelain-fused-to-metal crowns and look the same to a patient, but plans may reimburse them differently, so code by the alloy actually used and record it on the lab prescription and in the chart.
Does D2752 include the core buildup or post?
No. A core buildup (D2950) or a post-and-core is a separate procedure with its own code when clinically necessary to support the crown. Document and bill it separately, with its own justification, rather than rolling it into the crown fee. Folding a needed buildup into the crown understates the work, while billing an unnecessary one is an audit risk.
Will insurance pay the full noble-metal rate?
Not always. Many plans apply an alternate benefit, reimbursing any crown at the rate of a base-metal or non-precious crown, so the noble alloy in D2752 may leave a larger patient portion. Verifying benefits before treatment lets you quote the patient accurately and explain any gap between the plan's allowance and the crown actually placed, so the explanation of benefits doesn't bring a surprise.
Do I need a pre-authorization for a D2752 crown?
Many plans recommend or require a pre-estimate for crowns, submitted with a radiograph and often intraoral photos. Because crowns are a frequently reviewed benefit and may be down-coded by alloy, getting the pre-estimate back before the prep appointment lets you confirm frequency limits and any waiting period and quote the patient an accurate out-of-pocket amount before the tooth is prepared.
Confirm the current CDT descriptor and your specific payer policies before billing — browse the full dental code library or see our insurance verification feature.