Is a regular dental checkup exam covered by insurance?
Usually yes, at or near 100%, because most plans treat the routine checkup exam as preventive. The checkup exam (code D0120) is the exam an established patient gets at a regular visit, usually paired with a cleaning: the dentist looks over the mouth, checks old fillings and crowns, and looks for anything new. The catch is the exam count, which most plans cap at two a year.
100%
Preventive on most plans
2 per year
The usual exam limit, and it is shared. A checkup, a new-patient exam and a gum exam all pull from the same two slots.
6 months + 1 day
Some plans count days, not calendar halves. A checkup booked at 5 months and 3 weeks pays nothing on those plans.
$0 deductible
Preventive usually skips the deductible entirely. On plans that put exams in basic, the patient owes the deductible first, and it surprises them.
1 slot left?
The exam count is invisible in your chart when the patient saw another office this year. One check before the visit shows how many slots are left.
What would a real check show for this patient's D0120?
Pick a sample plan and type your fee. This is the visibility a real-time check gives the desk for every actual patient, in under a second.
Eligibility readout · D0120
Sample- Coverage
- Active, exams covered at 100%, no deductible
- Frequency
- 2 exams per year, shared with D0150 and D0180
- 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 D0120 is the right code
- Patient of record, seen by this office before
- Routine recall visit, not a specific complaint
- Existing work checked and new problems screened
- Not the first exam with this dentist
Documentation payers expect
Exam notes in the chart with the date, findings and any recall changes. Payers rarely ask for more unless the exam count is in question.
Why checkup exams get denied
What happens after the checkup exam
The exam is the door to the rest of the visit. It usually pairs with a cleaning (D1110 or D1120) and bitewings (D0272 or D0274) on the same day, and each of those has its own frequency clock. Then anything the dentist finds becomes a treatment plan with real numbers: a filling typically at 80%, a crown at 50%, a deductible first. The desk that knows the plan's percentages and remaining maximum before the patient stands up quotes it once, right, instead of calling back.
D0120, quick answers
Is a regular checkup exam covered by insurance?
Most plans cover D0120 at or near 100% as a preventive service, with no deductible.
How many checkup exams does a plan pay for each year?
Typically two, and the count is usually shared with the new-patient exam (D0150) and the gum exam (D0180).
Why was my checkup denied when I only had one this year?
Usually because another exam code used a slot, or the plan wants 6 months plus a day between exams and the visit came too early.
Does the checkup exam need prior authorization?
Almost never. The risk is the frequency count, not approval, and the eligibility check shows the count before the visit.
Can the exam be billed the same day as the cleaning?
Yes, on nearly every plan. The exam, the cleaning and the bitewings each keep their own frequency limit, so check all three.
More questions? Schedule 15 minutes with us and bring your toughest plan.
Every checkup patient, exam count known before they check in.
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Related: D0150 · D0140 · D1110
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.