Is a large silver filling covered by insurance?
Usually yes. Most plans pay a three-surface silver filling as a basic service at 70 to 80%, though some take a closer look at fillings this size. Code D2160 is a metal filling on a back tooth covering three sides at once, which means much of the tooth is being rebuilt, close to where some payers start asking whether a crown was the real job.
70 to 80%
Basic, but large fillings get reviewed
3 surfaces
Three sides of one back tooth in a single filling. Some plans flag this size for review because a tooth rebuilt this far sits near crown territory.
24 months
The usual replacement window. With three surfaces on the clock, the odds that one of them was filled recently go up, and so do partial payments.
X-ray on file
A current X-ray of the tooth is the cheapest insurance against a review. Attach it up front on plans that ask, and the claim usually clears.
Crown is 50%
If the tooth needs a crown later, that is a major service at 50% on most plans, not basic. One check shows both rates before the patient asks.
What would a real check show for this patient's D2160?
Pick a sample plan and type your per-tooth fee. This is the visibility a real-time check gives the desk for every actual patient, in under a second.
Eligibility readout · D2160
Sample- Coverage
- Active, basic covered at 80%
- Frequency
- Once per surface / 24 months
- Patient share
- Type your fee to see it
Estimate from a sample plan. A real check reads the actual plan in under a second.
When D2160 is the right code
- Back tooth, molar or premolar
- Silver metal filling
- Three surfaces of one tooth in a single filling
- All three surface letters on the claim
- Tooth is being filled, not crowned
Documentation payers expect
Tooth number, all three surface letters, a current X-ray, and a note on why a filling was chosen over a crown. Plans that review large fillings ask for exactly that.
Why large silver fillings get denied
What happens after the large silver filling
A three-surface filling is often the last filling a tooth gets before the crown conversation. If it cracks or decay returns, the next codes are a crown (D2740 or D2750), sometimes with a build-up (D2950) underneath, and the plan's share drops from basic at 80% to major at 50%, with a waiting period on some plans. Patients who hear those two numbers the day the big filling goes in are ready for the next visit. That takes knowing the plan's real percentages, which takes one check.
D2160, quick answers
Is a three-surface silver filling covered?
Usually, as a basic service at 70 to 80% on most plans, though some review fillings this size before paying.
Why would the plan review a filling?
Because a three-surface filling means most of the tooth is rebuilt, and some plans want to know a crown was not the real job. A current X-ray and a short note usually settle it.
Does D2160 need prior authorization?
Rarely, but on plans that review large fillings, sending the X-ray with the claim avoids a records request.
What is the replacement rule?
Typically 24 months per surface. With three surfaces on the clock, check the tooth's history before quoting.
What if the tooth needs a crown later?
A crown (D2740 or D2750) is a major service at 50% on most plans, sometimes with a waiting period. Quote both numbers the day the big filling goes in.
More questions? Schedule 15 minutes with us and bring your toughest plan.
Every big filling, checked against the plan before the patient sits.
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CDT is maintained by the American Dental Association. This page is Valian's own plain-English summary for front-desk teams, not official CDT descriptor text, and is not billing or clinical advice. Coverage patterns are common plan behaviors; every plan differs. Verify benefits before treatment.