Can D0120 and D1110 Be Billed Same Day?
Diagnostic
ALLOWED — INSURANCE MAY BUNDLE
Quick Answer: Exams (D0120) and preventive services (D1110) are routinely performed at the same appointment and are separately reimbursable under most plans. However, some carriers bundle the exam fee into the cleaning fee on certain plan designs.
📋 Rule Summary
Detail | |
Code A | D0120 — Explained – Routine Oral Exam |
Code B | D1110 — Adult Prophylaxis |
Same-day billing | ✅ ALLOWED — INSURANCE MAY BUNDLE |
Code A category | Diagnostic |
Code B category | Preventive |
Documentation needed | Tooth numbers, clinical notes, and separate indications for each code |
Common mistake | Assuming that because both codes appear on the same claim they will automatically be rejected — context and documentation determine the outcome |
What Is D0120 — Explained – Routine Oral Exam?
D0120 is a CDT code in the Diagnostic category. It covers explained – routine oral exam services and is used when the clinical record documents the appropriate indications for this procedure.
Diagnostic codes like D0120 are billed per service rendered. They require corresponding findings in the clinical chart and, for radiographic codes, the actual images retained in the patient record.
Key documentation requirements for D0120:
Tooth number(s) clearly identified for each code (D0120 and D1110)
Clinical notes documenting the separate indications for both procedures
Date of service correctly recorded for each procedure
What Is D1110 — Adult Prophylaxis?
D1110 is a CDT code in the Preventive category. It covers adult prophylaxis services and is used when the clinical record documents the appropriate indications for this procedure.
Preventive codes like D1110 are subject to frequency limitations that vary by insurance plan. Document the date of service and the patient's eligibility before submitting.
Key documentation requirements for D1110:
Tooth number(s) clearly identified for each code (D0120 and D1110)
Clinical notes documenting the separate indications for both procedures
Date of service correctly recorded for each procedure
D0120 and D1110 on the Same Day — The Bundling Rule Explained
Exams (D0120) and preventive services (D1110) are routinely performed at the same appointment and are separately reimbursable under most plans. However, some carriers bundle the exam fee into the cleaning fee on certain plan designs.
The Exception
Verify the patient's plan benefits. If both are covered separately, submit both codes. If the plan bundles them, submit whichever code has the higher allowed amount.
What to Bill in Each Scenario
Clinical situation | Correct code(s) |
|---|---|
Both procedures performed at the same visit with documentation | Both D0120 and D1110 |
Only explained – routine oral exam was performed | D0120 |
Only adult prophylaxis was performed | D1110 |
Procedures cannot be supported by chart documentation | Bill only the documented procedure |
Documentation Checklist
[ ] Tooth number(s) clearly identified for each code (D0120 and D1110)
[ ] Clinical notes documenting the separate indications for both procedures
[ ] Date of service correctly recorded for each procedure
[ ] Radiographic images retained in the patient record
[ ] Narrative attached if combining uncommon code pairs on the same claim
[ ] Patient's insurance eligibility confirmed for the date of service
Billing Tips to Avoid Denial
1. New patient exam + prophy is universally accepted
D0150 + D1110 on the same date is the standard new patient visit. Nearly all carriers allow this combination — it's one of the most common same-day billing pairs in dentistry.
2. Recall exam + prophy is allowed by most carriers
D0120 + D1110 at a recall visit is also standard. Some HMO-style plans bundle the exam into the prophy fee, but PPO plans typically pay both.
3. Child exam + prophy follows the same rules
D0120 or D0150 with D1120 (child prophy) is equally valid. Verify age limits on child vs. adult prophy codes for the patient's plan.
4. Avoid billing D0150 at every recall
D0150 is for new patients or when a comprehensive re-evaluation is genuinely warranted. Billing D0150 instead of D0120 at routine recalls is upcoding and triggers review.
Frequently Asked Questions
Can D0120 and D1110 ever be billed together?
Yes, in most cases — see the bundling rule explanation above for the conditions and any exceptions.
What is the difference between D0120 and D1110?
D0120 covers explained – routine oral exam services, while D1110 covers adult prophylaxis services. They belong to different CDT categories and address different clinical procedures.
Will insurance pay for D0120 and D1110 on the same claim?
Coverage depends on the specific plan. Most carriers allow this combination with documentation. Always verify with the patient's specific plan before submitting.
What documentation is needed to bill D0120 with D1110?
At minimum: tooth numbers for each procedure, clinical notes documenting separate indications, and — for complex or unusual combinations — a brief narrative explaining why both were clinically necessary on the same date.
What happens if D0120 and D1110 are denied when billed together?
Submit an appeal with supporting documentation including the clinical chart notes, radiographs (if applicable), and a narrative explaining the separate clinical purposes. Most carriers have a formal appeal process that can reverse automatic denials.
Is it upcoding or fraud to bill D0120 and D1110 on the same day?
Billing two codes that represent genuinely distinct, separately documented services is not fraud — it is accurate coding. Fraud occurs when a code is billed for a service that was not performed. Ensure your chart documentation fully supports each code submitted.