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What Is D0273? (CDT Code Overview)
CDT code D0273 — Bitewing X-Rays — falls under the Diagnostic category of CDT codes, specifically within the Radiographs/Diagnostic Imaging subcategory. Understanding when and how to use this code is essential for accurate billing, clean claim submission, and optimal reimbursement at your dental practice.
When Should You Use D0273?
The D0273 dental code represents a specific CDT (Current Dental Terminology) classification for billing three bitewing X-ray images. These radiographs play a vital role in identifying cavities between teeth, evaluating bone health, and checking existing dental work. Apply D0273 when capturing exactly three bitewing films during one appointment, typically for adult patients who have elevated cavity risk or require detailed diagnostic evaluation that falls between standard two-image or four-image protocols.
Quick reference: Use D0273 when the clinical scenario specifically matches bitewing x-rays. Do not use this code as a substitute for related procedures in the same category. Consider whether D0210 (Intraoral X-rays) or D0220 (Intraoral Periapical X-rays) might be more appropriate instead.
D0273 vs. Similar CDT Codes: Key Differences
Dental teams frequently confuse D0273 with other codes in the radiographs/diagnostic imaging range. Here is how D0273 differs from the most commonly mixed-up codes:
D0210: Intraoral X-rays — While D0210 covers intraoral x-rays, D0273 is specifically designated for bitewing x-rays. Selecting the wrong code can trigger claim denials or audits, so always verify the clinical scenario matches the code definition before submitting.
D0220: Intraoral Periapical X-rays — While D0220 covers intraoral periapical x-rays, D0273 is specifically designated for bitewing x-rays. Selecting the wrong code can trigger claim denials or audits, so always verify the clinical scenario matches the code definition before submitting.
D0230: Intraoral – Periapical Each Additional Radiographic Image — While D0230 covers intraoral – periapical each additional radiographic image, D0273 is specifically designated for bitewing x-rays. Selecting the wrong code can trigger claim denials or audits, so always verify the clinical scenario matches the code definition before submitting.
Documentation Requirements for D0273
Patient Case: A mature patient arrives for routine checkup with previous cavity development between teeth and multiple back-tooth fillings. The dental professional decides three bitewing X-rays will best capture all problem areas, considering the patient's specific mouth structure and restoration background.
Recommended Procedure:
Note the patient's decay vulnerability and filling history in treatment records.
Specify which mouth regions were imaged and explain the three-image decision.
Apply D0273 procedure code on billing documents.
Include supporting records and X-ray files when insurers require them.
Track claim progress and address any information requests or appeals quickly.
This methodology ensures proper billing practices, validates treatment necessity, and facilitates smooth payment processing for your dental office operations.
Documentation checklist for D0273:
Patient chief complaint and relevant medical/dental history clearly recorded.
Clinical findings that support the use of D0273 specifically (not a more general or more specific code).
Any diagnostic tests, imaging, or supplementary data that justify the procedure.
Treatment plan with rationale connecting the diagnosis to the procedure coded as D0273.
Post-procedure notes, including outcomes and follow-up recommendations.
For a deeper look at documentation best practices, see our guide on How to Improve Dental Charting Practices.
Insurance and Billing Guide for D0273
To optimize payment success and reduce claim rejections for D0273:
Confirm benefit details during insurance checks, since certain policies restrict how often or how many bitewing films are covered within specific timeframes.
Include comprehensive medical records with claims, particularly when image quantities differ from patient's treatment history or insurer standards.
Include X-ray images when insurers request them or if claims require additional review.
For rejections, file appeals with thorough explanations describing medical necessity and citing patient's risk elements or clinical discoveries.
Understand companion codes, including D0272 (two-image bitewings) and D0274 (four-image bitewings), and verify your code selection aligns with the precise number of films captured.
Precise coding practices and complete documentation help minimize billing delays and maintain compliance with insurance provider standards.
Common denial reasons for D0273: Lack of clinical documentation, frequency limitations exceeded, code mismatch with diagnosis, or missing prior authorization. When appealing a denied D0273 claim, include a detailed narrative explaining why the procedure was necessary, supporting clinical evidence, and relevant imaging or test results. Many practices find that well-documented first submissions dramatically reduce the need for appeals.
To improve your overall claims workflow, explore How to Build a Reliable Dental Insurance Verification Workflow.
Real-World Case Example: Billing D0273
A patient presents requiring a procedure consistent with D0273 (bitewing x-rays explained). The treating dentist documents the clinical findings, performs the procedure as indicated, and records detailed notes including the diagnosis, technique, and outcome. The billing team verifies insurance coverage, submits the claim with D0273 and supporting documentation, and follows up to ensure timely reimbursement. When the initial claim is processed, the practice reviews the Explanation of Benefits and addresses any discrepancies promptly.
Related CDT Codes to D0273
If you are researching D0273, you may also need to reference these related CDT codes in the radiographs/diagnostic imaging range and beyond:
D0120: Routine Oral Exam — Learn when to use D0120 and how it differs from D0273.
D0140: Limited Oral Exam Guide — Learn when to use D0140 and how it differs from D0273.
D0210: Intraoral X-rays — Learn when to use D0210 and how it differs from D0273.
D0220: Intraoral Periapical X-rays — Learn when to use D0220 and how it differs from D0273.
D0230: Intraoral – Periapical Each Additional Radiographic Image — Learn when to use D0230 and how it differs from D0273.
Frequently Asked Questions About D0273
How does D0273 differ from other bitewing procedure codes such as D0272 and D0274?
D0273 is the specific procedure code for capturing three bitewing X-rays in a single patient visit. This differs from D0272, which covers two bitewing images, and D0274, which applies to four bitewing radiographs. The appropriate code selection is determined by how many images are clinically necessary to obtain comprehensive diagnostic information based on the patient's oral anatomy and specific treatment needs.
What are typical reasons insurance companies deny D0273 claims?
Insurance denials for D0273 commonly occur due to frequency limit violations, such as when patients exceed their plan's annual allowance for bitewing radiographs, or when clinical documentation fails to adequately justify the necessity of taking three separate images. To minimize claim denials, dental offices should verify insurance benefits beforehand and maintain detailed clinical records supporting the diagnostic need. Always verify with the specific insurance carrier, as policies and coverage rules can vary significantly between payers. Maintaining thorough documentation for D0273 will strengthen your position in any audit or appeal scenario.
What steps should dental offices take when appealing a rejected D0273 claim?
When facing a D0273 claim denial, practices should first carefully examine the Explanation of Benefits to understand the specific rejection reason. Next, compile comprehensive supporting documentation and file a formal appeal with the insurance carrier. The appeal should include detailed clinical notes, relevant radiographic findings, and a thorough explanation demonstrating the medical necessity for obtaining three bitewing images to strengthen the case for claim approval.
What is the typical reimbursement range for D0273?
Reimbursement for D0273 (bitewing x-rays explained) varies based on geographic location, payer contract terms, and whether the patient has in-network or out-of-network coverage. Fee schedules are typically set by individual insurance carriers, so practices should verify expected reimbursement during benefits verification. If your practice consistently receives lower-than-expected payments for D0273, consider renegotiating your fee schedule with major payers or reviewing your UCR (Usual, Customary, and Reasonable) data for your region.
Does D0273 require prior authorization?
Prior authorization requirements for D0273 depend on the patient's specific insurance plan. Some carriers require advance approval for procedures coded under D0273, while others process claims without it. Best practice is to verify authorization requirements during insurance eligibility checks before the appointment. If prior authorization is required, submit the request with detailed clinical notes and supporting documentation to avoid delays in patient care and claim processing.