What D6122 means

D6122 covers an implant-supported retainer for a full cast metal FPD, using noble alloys. As with all full-metal codes in this family, there is no porcelain — the entire retainer is cast from alloy, maximizing strength and minimizing wear on opposing teeth, at the cost of a metal-colored appearance. 'Implant-supported' means no separate billed abutment; 'noble alloys' sets the alloy tier.

As with its PFM counterpart (D6099), D6122 differs from a single full-metal crown (D6067/D6086/D6087/D6088) only in ROLE: D6122 is one anchoring end of a multi-unit bridge, billed alongside the bridge's other retainer(s) and pontic(s), never as a standalone restoration for that tooth position.

D6122 sits in the metal-class grid alongside D6077 (high noble) and the other full-cast retainer codes — together the complete implant-supported full-metal retainer set, mirroring D6067/D6086/D6087/D6088 for single crowns and D6072-D6074/D6194 for abutment-supported retainers.

When it's typically used

D6122 is reported for each implant-supported retainer unit of an FPD (bridge) that is full cast metal in noble alloys, where the retainer connects directly to the implant with no separate billed abutment. It applies per retainer, not per pontic, and is distinguished from the PFM retainer in the same alloy (D6099) by the absence of porcelain.

How much does D6122 cost?

An implant-supported full-metal retainer in noble alloys is priced as one component of a larger bridge case: the fee reflects the alloy tier and cast-metal lab fabrication (generally less than PFM, since there's no porcelain layering), billed per retainer unit, with pontics and any additional retainers billed separately. Coverage for implant-supported bridge work varies by plan. Verify coverage with the relevant plan before treatment.

Is D6122 covered by insurance?

Coverage for D6122 varies by plan. As with the PFM retainers, claims for multi-unit cases typically list each retainer and pontic as its own line — reporting the correct SUPPORT type, CONSTRUCTION (full metal, not PFM or ceramic), and METAL CLASS (noble alloys) for each unit matters for accurate adjudication. Missing-tooth clauses and alternate-benefit downgrades are common for implant bridge work. Verifying benefits before treatment helps.

Frequently asked questions

What is the D6122 dental code?

It's the CDT code for an implant-supported retainer crown — full cast metal in noble alloys — used as one anchoring end of a fixed bridge (FPD) that connects directly to the implant, with no separate billed abutment, and no porcelain overlay.

What does 'noble alloys' mean here?

An alloy with at least 25% noble (precious) metal content but less than high noble's 60% — the middle tier, balancing biocompatibility and cost.

How is D6122 different from D6099?

Porcelain. D6122 is bare cast metal. D6099 is the same alloy tier with a porcelain overlay for esthetics. Both are implant-supported, with no separate billed abutment.

How is a retainer different from a single crown in the same alloy?

Same material and construction, different role: a single crown restores one isolated tooth and is billed alone. D6122 is a retainer — one end of a multi-unit bridge — billed alongside the bridge's pontic(s) and any other retainer(s).

Is it billed per retainer or per bridge?

Per retainer unit. Each retainer and each pontic in a bridge case is reported under its own applicable code; the bridge's total is the sum of those units.

Is it covered by insurance?

Coverage varies by plan. Reporting the correct support type (implant-supported), construction (full metal), and alloy class (noble alloys) for each retainer matters for accurate adjudication. Missing-tooth clauses and alternate-benefit downgrades are common for implant bridge work. Verify coverage with the relevant plan.

This page is an independent, plain-language explanation for general information only. It is not billing, coding, or clinical advice. For the official CDT descriptor and current-year wording, refer to the American Dental Association.