Dental codes, explained the way the front desk needs them.
78 of the most-used CDT codes in plain English: what the procedure is, how plans typically class it, the frequency limits that block claims, and the gotchas that turn into surprise bills. No jargon, no guessing.
Running a medical practice instead? The medical procedure code guides cover common codes by specialty the same way.
Diagnostic (exams & X-rays)
- D0120: Is a regular dental checkup exam covered by insurance?
- D0140: Is an emergency dental exam covered by insurance?
- D0145: Is my toddler's first dental exam covered by insurance?
- D0150: Is a new patient dental exam covered by insurance?
- D0180: Is a gum disease exam covered by insurance?
- D0210: Is a full set of dental X-rays covered by insurance?
- D0220: Is a single dental X-ray covered by insurance?
- D0230: Are extra dental X-rays in one visit covered by insurance?
- D0274: Are bitewing X-rays covered by insurance?
- D0272: Are two bitewing X-rays covered by insurance?
- D0330: Is a panoramic X-ray covered by insurance?
- D0350: Are photos of my teeth covered by insurance?
- D0367: Is a 3D cone beam scan covered by insurance?
- D0470: Are molds of my teeth covered by insurance?
- D0601: Is a cavity risk check covered by insurance?
- D0603: Is a high cavity risk assessment covered by insurance?
Preventive (cleanings, fluoride, sealants)
- D1110: Is a regular teeth cleaning covered by insurance?
- D1120: Is my child's teeth cleaning covered by insurance?
- D1206: Is a fluoride treatment covered by insurance?
- D1208: Is the fluoride tray treatment covered by insurance?
- D1351: Are dental sealants covered by insurance?
- D1510: Is a space maintainer covered by insurance?
- D1355: Is a cavity prevention treatment covered by insurance?
- D1354: Is silver diamine fluoride (SDF) covered by insurance?
Restorative (fillings & crowns)
- D2140: Is a small silver filling covered by insurance?
- D2150: Is a two-surface silver filling covered by insurance?
- D2160: Is a large silver filling covered by insurance?
- D2330: Is a white filling on a front tooth covered by insurance?
- D2331: Is a two-surface front tooth filling covered by insurance?
- D2391: Is a white filling on a back tooth covered by insurance?
- D2392: Is a two-surface white filling covered by insurance?
- D2393: Is a large white filling covered by insurance?
- D2740: Is a porcelain crown covered by dental insurance?
- D2750: Is a porcelain fused to metal crown covered by insurance?
- D2790: Is a gold crown covered by dental insurance?
- D2920: Does insurance cover putting a crown back on?
- D2940: Is a temporary filling covered by dental insurance?
- D2950: Is a core build-up for a crown covered by insurance?
- D2954: Is a post and core after a root canal covered by insurance?
- D2962: Are porcelain veneers covered by dental insurance?
Endodontics (root canals)
- D3110: Is a direct pulp cap covered by dental insurance?
- D3220: Is my child's baby root canal covered by insurance?
- D3310: Is a root canal on a front tooth covered by insurance?
- D3320: Is a root canal on a premolar covered by insurance?
- D3330: Is a root canal on a molar covered by insurance?
- D3346: Is redoing a front tooth root canal covered by insurance?
- D3348: Is redoing a molar root canal covered by insurance?
Prosthodontics (dentures & bridges)
- D5110: Is a full upper denture covered by insurance?
- D5120: Is a full lower denture covered by insurance?
- D5213: Is an upper partial denture covered by insurance?
- D5214: Is a lower partial denture covered by insurance?
- D5751: Is a denture reline covered by insurance?
- D6240: Is a dental bridge covered by insurance?
- D6750: Are the anchor crowns on a bridge covered by insurance?
Oral surgery (extractions)
Adjunctive (anesthesia, guards, emergencies)
- D9110: Is an emergency visit for tooth pain covered by insurance?
- D9222: Is general anesthesia at the dentist covered by insurance?
- D9230: Is laughing gas at the dentist covered by insurance?
- D9310: Is a specialist consultation covered by insurance?
- D9430: Is a follow-up visit to the dentist covered by insurance?
- D9944: Is a night guard covered by dental insurance?
- D9945: Is a soft night guard covered by insurance?
- D9972: Is teeth whitening covered by dental insurance?
Codes tell you what it is. Verification tells you what it pays.
Every "typically" on these pages is a per-plan question. Your team answers it with a real-time eligibility check in one click, before the patient sits down. Plans from $39 a month per location, billed yearly, or from $49 month to month. Plus $2.50 or less per check we find — $0 when we can’t find the insurance. No setup fee and no seat fees.
CDT is maintained by the American Dental Association. The explanations on these pages are Valian's own plain-English summaries for front-desk teams, not official CDT descriptor text, and are not billing or clinical advice. Coverage classes, percentages, and frequencies describe common plan patterns; every plan differs. Verify benefits before treatment.