Crown repair, recementation and remake: three different claims

This is a small family that quietly loses a practice real money, because the work is often done as a courtesy at the end of an emergency appointment and never billed at all. It is legitimate, chargeable treatment with its own codes.

Three situations, three codes

• The crown is intact and has simply come off. That is recementation, and it is the lowest-value of the three — but it is still billable, and it is the one most often written off.
• The crown is damaged but serviceable, and is repaired in the mouth. That is the repair code, and it covers restoring a chip, a fracture of the porcelain, or a defect at the margin without removing the restoration.
• The crown cannot be saved. That is a new crown, with everything a new crown involves — including a replacement frequency limit measured from the date the original was seated.

The original seat date governs everything

Replacement crowns carry frequency limits, commonly five to seven years, running from the date the existing crown was placed — by any practice. This single fact decides more of these claims than the coding does.

• Inside the limit, a remake will usually be denied, and a repair may be the only treatment the plan will contribute to. That is a clinical conversation worth having before the appointment, not after the denial.
• Where the crown was placed at a previous practice, the plan's own history is the authority. Ask at verification rather than relying on the chart.
• Repairing a restoration placed very recently by the same practice can be treated as remedying the original work rather than as new treatment, and may not be separately payable.

Recementation has its own quiet rules

Recementation is frequently excluded within a defined window after the original placement — the reasoning being that a crown that debonds within months was not adequately retained to begin with. Beyond that window it is ordinarily payable, and it is worth billing. Several recementations of the same unit in a short period is also diagnostic in itself: it usually means the preparation, the margin or the occlusion needs addressing, not more cement.

Repairs on implant-supported restorations

A repair to a crown on an implant is not the same code as a repair to a crown on a natural tooth, and the same relationship holds here as elsewhere in implant dentistry: the implant series has its own parallel codes, and using the natural-tooth code on an implant restoration is one of the more reliable ways to have a claim rejected. Check what the crown is sitting on before coding the repair to it.

What to attach before it is denied

1. The date the original crown was seated, and by whom.
2. A photograph or radiograph showing the damage, which distinguishes a repair from an elective replacement.
3. A short narrative explaining why repair was appropriate rather than remake, or the reverse.
4. For a remake inside the frequency limit, the clinical reason — recurrent decay, fracture, failure of the underlying tooth — stated plainly.
5. Whether the restoration is on a natural tooth or an implant, because that changes the code entirely.