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// Diagnostic · D0150

Is a new patient dental exam covered by insurance?

Usually yes, at or near 100% as preventive, but only once in a while. The new-patient exam (code D0150) is the full first exam with a new office: complete charting of every tooth, your health history, an oral cancer screening, and a treatment-plan baseline. Most plans pay it once per dentist or once every few years, and it uses one of your two yearly exam slots.

100%

Preventive, but once per dentist

1 per dentist

The common rule: one full exam per patient per office, or one every 3 years. Bill it twice for the same patient and the second denies.

Shares 2 per year

The new-patient exam pulls from the same two yearly exam slots as the checkup. A patient who switched offices mid-year may have none left.

D0120 after that

Payers expect every later visit to be the regular checkup code. Repeating D0150 for a patient of record is one of the most common exam denials.

New patient, day 1

A new patient walks in with nothing verified. A check run from the schedule the night before shows the exam count and the X-ray clock before they sit down.

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What would a real check show for this patient's D0150?

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Eligibility readout · D0150

Sample
Coverage
Active, D0150 covered at 100%, 1 per dentist
Frequency
1 per dentist, shares 2 exams per year
Patient share
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When D0150 is the right code

  • First visit with this dentist or office
  • Returning after a gap of about three years
  • Every tooth charted, health history taken
  • Head, neck and soft tissue screened
  • A treatment plan baseline is recorded

Documentation payers expect

Full charting, a current health history, and the screening findings in the note. Expect the payer to compare the date against the last exam it paid this office.

D0150 or its neighbors?

D0150
Full first exam with a new office
D0120
Regular checkup once you are a patient
D0180
Full exam with the gum charting added
D0140
One problem only, no full exam

Picking the wrong neighbor is its own denial category. The chart decides, not the schedule.

Why new-patient exams get denied

Billed again for a patient of record. Most plans pay D0150 once per dentist or once every 3 years. After that, the payer expects D0120 and denies the repeat.
The exam count is spent. A patient who had two checkups at the old office this year has no exam slot left, no matter how new they are to you.
Downgraded to the checkup rate. Some plans pay D0150 at the D0120 fee, so the claim is not denied, it is just paid short.
X-rays taken the same day deny separately. A full-mouth series (D0210) has its own 3 to 5 year clock that follows the patient from the old office.

What happens after the new-patient exam

The first visit usually stacks up: the exam, a full-mouth X-ray series (D0210) or a panoramic (D0330), bitewings (D0274), and a cleaning (D1110). Each has its own frequency clock, and every one of them followed the patient from the old office. Then the treatment plan lands, and new patients often owe a deductible before a single filling or crown pays. The desk that verified the exam count, X-ray dates, deductible and remaining maximum the night before quotes the whole first visit with confidence.

D0150, quick answers

Is a new patient dental exam covered by insurance?

Most plans cover D0150 at or near 100% as preventive, typically once per dentist or once every 3 years.

Does the new-patient exam count as one of my two yearly exams?

On most plans, yes. It shares the same exam count as the regular checkup (D0120).

I switched dentists this year. Will the new exam be paid?

Only if you have an exam slot left. Two checkups at the old office this year usually means the new exam is denied or paid out of pocket.

Why was D0150 paid at the checkup rate?

Some plans reimburse the new-patient exam at the D0120 fee. The claim pays, just less than billed.

Does D0150 need prior authorization?

No. The risks are frequency and the once-per-dentist rule, both visible on the eligibility check before the visit.

More questions? Schedule 15 minutes with us and bring your toughest plan.

Every new patient, exam count and X-ray clock known before day one.

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View all dental codes

Related: D0120 · D0180 · D0210

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.