What your dental bill actually says

Every line on a dental estimate is a five-character code. Look one up and find out what it covers, what it typically costs, how your plan is likely to treat it, and which similar-sounding code it is not.

Most looked up: D2740 D1110 D3330 D4341 D2950 D7210

478Codes explained
68Treatment guides
320,873Words written
$0To use it

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Diagnostic

What the D0 diagnostic codes cover: exams, X-rays, scans and tests. Which ones your plan pays t…

D0100–D0999 · 17 codes

Preventive

Cleanings, fluoride, sealants and space maintainers. What the D1 codes cover, why a cleaning is…

D1000–D1999 · 8 codes

Restorative

Fillings, inlays, onlays and crowns. How the D2 codes are organised by surfaces and material, w…

D2000–D2999 · 77 codes

Endodontics

Root canal codes by tooth type, retreatment, apicoectomy and pulpotomy. What each D3 code cover…

D3000–D3999 · 45 codes

Periodontics

Scaling and root planing, periodontal maintenance, gum surgery and grafting. What each D4 code…

D4000–D4999 · 16 codes

Prosthodontics, removable

Complete and partial dentures, relines, repairs and immediate dentures. What the D5 codes cover…

D5000–D5899 · 50 codes

Maxillofacial prosthetics

Obturators, facial and ocular prostheses, radiation carriers and feeding appliances. What the D…

D5900–D5999 · 39 codes

Implant services

Implant placement, abutments, implant crowns and implant dentures. Which codes make up the tota…

D6000–D6199 · 65 codes

Prosthodontics, fixed

Bridge pontics, retainer crowns and Maryland bridges. How a bridge is coded unit by unit, what…

D6200–D6999 · 5 codes

Oral & maxillofacial surgery

Extractions, wisdom teeth, bone grafts, biopsies and jaw surgery. What each D7 code covers, wha…

D7000–D7999 · 129 codes

Orthodontics

Braces and aligner codes by dentition and treatment phase. What comprehensive orthodontic treat…

D8000–D8999 · 7 codes

Adjunctive general services

Sedation, palliative treatment, night guards, whitening and consultations. What the D9 codes co…

D9000–D9999 · 20 codes

How to read a dental estimate

An estimate is a list of codes with fees beside them. The codes are what your dentist sends to your insurer, and they are what the insurer pays against — so the specific code chosen decides both what the treatment is recorded as and how much of it is covered.

Three things cause nearly all of the confusion. First, codes that sound almost identical carry very different fees: the difference between a two-surface and a three-surface filling, or between a crown in one alloy and the same crown in another, is a few words in the description and several hundred dollars on the bill.

Second, a single appointment usually produces several codes. An examination, a set of X-rays and a cleaning are three separate procedures with three separate frequency limits, which is why they are billed separately rather than bundled.

Third, a plan can cover a procedure and still not pay for the version you are having. Alternate-benefit clauses pay the allowance for the cheaper material and leave you the difference — the reason a white filling on a back tooth, or a ceramic crown on a molar, so often arrives with a balance attached.

Every code page here covers those three points for that code specifically: what it requires, what it costs, what your plan is likely to do with it, and which neighbouring code it gets mistaken for.