Recement Bridge Dental Code (D6930): Billing Guide

What D6930 covers

D6930 reports recementing or rebonding an existing fixed partial denture. The bridge came loose, it is still intact and clinically acceptable, and the dentist cleans the residual cement off the retainers and the abutment teeth and lutes the same bridge back on.

CDT nomenclature never uses the word bridge. It calls the restoration a fixed partial denture: retainer crowns on the abutment teeth, joined to one or more pontics that fill the space where a tooth is missing. That is why the recement code lives with the fixed prosthodontics codes instead of next to the crown codes.

Two details follow from that and both change how the claim is built:

• One bridge, one D6930. A three-unit bridge that releases on one side is still one prosthesis. You bill the code once, not once per retainer and not once per unit.
• The whole prosthesis has to be reusable. If the dentist recements it, the bridge is going back in service as-is. Any repair, sectioning, or replacement is a different code.

Resin-bonded bridges, sometimes called Maryland bridges, are fixed partial dentures too. When one of those debonds and the dentist rebonds the same prosthesis, D6930 is still the code.

Which recement code: two questions

Every code in the recement family reports the same chairside work. They differ on two questions, and getting either one wrong is what produces the misbilled claims.

Question one: what kind of restoration came off?

• D2920 reports a single crown that stands on its own tooth.
• D2910 reports an inlay, onlay, veneer, or other partial-coverage restoration.
• D2915 reports a post and core that dislodged but is still usable.
• D6930 reports a fixed partial denture, meaning a multi-unit bridge.

Question two: what is it supported by?

• D6930 is a bridge cemented to natural abutment teeth.
• D6093 is a bridge supported by implants or implant abutments.
• D6092 is a single crown supported by an implant or abutment.

Both implant codes assume the prosthesis was cemented. A screw-retained implant crown or bridge that loosens is not recemented, so D6092 and D6093 do not apply. That case runs through the implant maintenance and retaining-screw codes, and which one depends on what the dentist actually did, so read the note before coding it.

Read across both questions and the code falls out for crowns and bridges. A single crown on a natural tooth is D2920, a single crown on an implant is D6092, a bridge on natural teeth is D6930, a bridge on implants is D6093. Partial-coverage restorations and posts have no implant counterpart, so D2910 and D2915 are answered by question one alone.

What to bill when a bridge comes loose

Practices usually reach this page mid-appointment with a loose bridge in front of them, so here is the decision in order.

1. Is the prosthesis a bridge? More than one unit, with a pontic, on natural abutments. If yes, you are in D6930 territory. A standalone crown is D2920; a bridge on implants is D6093.
2. Is it still serviceable? The dentist has to be able to seat the same bridge and expect it to hold. If it can go back in, D6930 is the code.
3. Did anything break? Fractured porcelain, a failed connector, or broken metal that gets repaired is D6980, not a recement. Cutting the bridge apart so part of it can remain is D9120.
4. Is an abutment tooth failing? A bridge that comes loose because an abutment has decay under the retainer or has fractured usually cannot be saved by recementing it. Recementing over an undiagnosed abutment problem buys a few months and then the same bridge comes off again, with more damage under it. Radiograph the abutments before deciding.
5. Is it going to be replaced? A replacement bridge is billed with the retainer crown codes such as D6750 and the pontic code for the span. Do not bill a recement on the same visit as a replacement of the same prosthesis.

Coverage and how carriers treat a recement

Most plans cover D6930, typically as a basic service, and the fee is small enough that verification rarely happens in advance. The rules that bite are the ones about timing.

The window after the original seat. Plans commonly refuse to pay a recement done within a set period after the same office delivered the bridge, on the reasoning that the practice was already paid for seating it. Six months is a common window and twelve months appears too. Hawaii Dental Service publishes the benefit as starting 6 months after insertion and then allowing one every 12 months. The number is plan-dependent and has to be verified against the specific contract rather than assumed.

Whether the patient can be billed inside that window. Under many participating-provider contracts, a recement inside the post-seat window is not billable to the patient either. The service was included in the bridge fee, so writing it off is the correct posting, not a patient balance. Read the provider agreement before you transfer that balance.

A frequency limit after the window opens. Once the benefit is available, plans usually cap it, often at once per prosthesis per twelve months. Repeated recements on the same bridge run out of benefit quickly, and some carriers read a third recement as evidence that the bridge needs replacing rather than reseating.

Whether another office placed the bridge. When a different practice delivered the bridge, the post-seat exclusion frequently does not apply, because it exists to prevent double payment to the same provider. Carriers vary on this and some apply the window regardless of who placed the prosthesis.

Documentation that supports the claim

D6930 pays routinely on most plans and rarely needs a narrative. Attach documentation when the claim is unusual rather than by default:

• The date the bridge was seated and who seated it. This is the single detail that resolves post-seat denials. If another practice placed the prosthesis, say so on the claim.
• The teeth involved. The abutments and the pontic span, so the carrier can match the recement to the bridge already on file.
• A note that the prosthesis is serviceable. One line confirming the bridge was intact and reseated, which separates a recement from a repair or a replacement.
• A radiograph when the recement is a repeat. By the second or third recement on the same bridge, the carrier is deciding whether to keep paying recements or expect a replacement, and the abutment condition is what answers that.

If an abutment turned out to be decayed or fractured, that finding belongs in the note whether or not the bridge was reseated. It supports the recement now and the replacement later.

What to get right in your PMS

The menus differ across Open Dental, Dentrix, Eaglesoft, Curve, and Carestream, but the setup that prevents these denials is the same:

1. Keep D6930 and D2920 apart in the procedure list. Label them by prosthesis, bridge versus single crown, rather than by the word recement. If both codes read as “recement” in a pick list, someone will grab the wrong one.
2. Carry the implant versions in the list too. D6092 and D6093 need to be as easy to find as D6930, or implant-supported recements quietly get billed on the natural-tooth codes.
3. Make the original seat date findable. The bridge delivery is somewhere in the ledger. If your system can surface the prior prosthetic date on the tooth, use it, because it is the fastest way to catch a post-seat denial before the claim goes out.
4. Set the recement as one line, not one per unit. Some templates default to per-tooth entry on fixed prosthetics. D6930 is billed once for the prosthesis.
5. Write the adjustment rule down. Decide in advance how the office posts a recement that falls inside the post-seat window, and put it in the collections notes so the answer is the same regardless of who is working the account.

For how the tooth numbers, the prosthesis span, and the remarks field are filled in on the claim itself, see the ADA dental claim form guide.