What D9310 means

D9310 covers a consultation — a diagnostic service provided by a dentist or physician other than the requesting (referring) dentist or physician. "D" is dental, "93" is the adjunctive professional-visits group, and "10" is this consultation. It's used when a patient is sent (referred) to another dentist or specialist for their opinion and evaluation of a specific dental problem or condition. The consulting dentist examines the patient, evaluates the problem, and provides their findings, opinion, and recommendations — typically reporting back to the referring dentist.

This commonly happens when a general dentist refers a patient to a specialist — such as an oral surgeon (for a surgical issue or extraction), an endodontist (for a root canal question), a periodontist (for gum disease), a prosthodontist (for complex restorative needs), or an orthodontist — for the specialist's evaluation and advice on the specific problem.

The consultation is the specialist's diagnostic evaluation and opinion, distinct from any treatment that may follow (which is coded separately). A useful coding point: if an insurer denies D9310 as a non-covered benefit, the practice can sometimes resubmit it as a limited oral evaluation (D0140). It contrasts with the patient's own dentist's routine exams (D0120/D0150). Coverage is plan-specific, often with frequency limits (e.g., a certain number per year). The consulting provider documents their evaluation and opinion.

When it's typically used

D9310 is reported when a dentist or specialist other than the referring dentist evaluates a patient for a specific problem and provides their diagnostic opinion and recommendations — typically when a patient is referred to a specialist (oral surgeon, endodontist, periodontist, etc.) for their assessment of a particular condition.

How much does D9310 cost?

A specialist consultation is a moderate fee, often roughly 75 to 250 USD depending on the specialist and region — for the evaluation and opinion. Any diagnostic tests (like specialized X-rays) or subsequent treatment are billed separately. The consultation fee covers the specialist's professional evaluation of the specific problem.

Is D9310 covered by insurance?

Plan-specific; often covered, sometimes with frequency limits (e.g., a certain number of consultations per year, such as up to four per 12 months under some plans). If an insurer denies D9310 as a non-covered benefit, it can sometimes be resubmitted as a limited oral evaluation (D0140). Documentation of the consultation and the problem evaluated supports the claim. The consultation is distinct from any treatment that follows.

When you're referred to a specialist

A consultation often happens when your general dentist refers you to a specialist, and understanding this clarifies the purpose of the visit.

General dentists handle a wide range of dental care, but for certain complex, specialized, or specific problems, they refer patients to dental specialists who have advanced training in that area. Common referrals include: to an oral and maxillofacial surgeon (for surgical extractions, especially complex ones like impacted wisdom teeth, or other oral surgery); to an endodontist (a root canal specialist, for difficult or complex root canal situations); to a periodontist (a gum specialist, for advanced gum disease or gum surgery); to a prosthodontist (for complex restorative or prosthetic needs); to an orthodontist (for braces and alignment); or to an oral medicine or other specialist for specific conditions. The referral is for the specialist's expertise in evaluating and advising on (and often treating) the specific problem.

When you go to the specialist, the initial visit is often a consultation (D9310) — the specialist evaluates your specific problem, examines you, reviews any relevant records or images, and provides their expert opinion and recommendations, typically communicating back to your referring dentist. This consultation is the specialist's assessment of the problem, which may lead to a recommended treatment plan (the treatment itself being separate). Understanding that a consultation is the specialist's evaluation and opinion on the specific issue you were referred for helps you know what to expect at the visit — an expert assessment of your problem and advice on how to address it. The referral and consultation ensure you get specialized expertise for problems beyond routine general dentistry, which is an important part of comprehensive dental care. Your general dentist and the specialist work together, with the consultation being the specialist's contribution of their expert evaluation.

What happens at a dental consultation

Knowing what happens at a consultation helps patients prepare for and understand this specialist evaluation visit.

At a consultation, the consulting dentist or specialist focuses on evaluating the specific problem you were referred for. They typically review your relevant history and any records, images (X-rays), or information sent by the referring dentist, then examine you — assessing the specific condition, area, or problem in question. They may take or request additional diagnostic information if needed (such as specialized X-rays or tests, which would be separate) to fully evaluate the problem. Based on their evaluation, the specialist forms their professional opinion about the diagnosis, the situation, and the recommended approach, and discusses this with you — explaining what they found, the options, and their recommendations. They typically also communicate their findings and recommendations back to your referring dentist, so the two providers coordinate your care.

The consultation is focused and diagnostic — it's about evaluating the specific problem and providing expert advice, rather than performing treatment (which, if needed, is planned and done separately). For you, it's an opportunity to get a specialist's expert assessment of your problem, understand your situation and options, and ask questions. It's helpful to come prepared with your questions and any relevant information. The specialist's evaluation and recommendations guide the next steps — whether that's a recommended treatment (by the specialist or your general dentist), further monitoring, or reassurance. Understanding that a consultation is this focused expert evaluation of your specific problem, resulting in a diagnosis and recommendations, helps you make the most of the visit and know what to expect. It's a valuable step in getting specialized care for a particular dental concern, ensuring you benefit from the specialist's expertise in assessing and advising on your problem.

The value of a second opinion

Sometimes a consultation serves as a second opinion, and understanding the value of second opinions clarifies when seeking one is worthwhile.

A consultation can be sought not only via a referral for specialized treatment but also when a patient (or dentist) wants a second opinion on a diagnosis or treatment plan — another qualified dentist's independent assessment of the situation. Second opinions can be valuable in various circumstances: when a recommended treatment is significant, invasive, or expensive (such as extensive work, multiple extractions, or major restorative or surgical treatment), and you want confirmation it's the right approach; when you're uncertain about a diagnosis or want to understand your options more fully; when different providers have given differing recommendations; or simply when you want added confidence in your treatment decision. Getting another expert's perspective can confirm the original plan, offer alternative approaches, or provide reassurance, helping you make an informed decision.

Seeking a second opinion is a reasonable and accepted part of healthcare, and a good dentist won't be offended by a patient wanting one for a significant decision. The consulting dentist provides an independent evaluation and their opinion, which you can weigh alongside the original recommendation. For major or uncertain treatment decisions, the modest cost of a consultation for a second opinion can be worthwhile for the added confidence and information it provides. Understanding that a consultation can serve as a second opinion — an independent expert assessment — helps patients know this option is available when they want added confidence in a diagnosis or treatment plan, particularly for significant dental decisions. It empowers patients to be informed and confident in their care. The dentist providing the second-opinion consultation evaluates the situation and gives their professional perspective, contributing to the patient's informed decision-making about their dental treatment.

Consultation vs evaluation vs treatment

It helps to distinguish a consultation from regular evaluations and from treatment, clarifying how this code fits among dental services.

A consultation (D9310) is specifically a diagnostic service provided by a dentist or specialist other than the patient's referring dentist — it's an evaluation and opinion on a specific problem, typically by a specialist the patient was referred to, or for a second opinion. This differs from the patient's own dentist's routine evaluations: a comprehensive oral evaluation (D0150) is a thorough exam of a new or established patient by their dentist; a periodic evaluation (D0120) is a routine recall checkup; and a limited evaluation (D0140) is a problem-focused exam for a specific complaint. These are the patient's own dentist's exams, while the consultation is another provider's focused assessment of a referred problem. And all of these evaluations/consultations are distinct from treatment — the actual procedures to address the problem, which are coded and billed separately.

So the consultation occupies a specific niche: a specialist's or other dentist's expert evaluation and opinion on a particular problem, separate from routine exams and from treatment. A useful practical point is that if insurance denies the consultation (D9310) as not covered, it can sometimes be resubmitted as a limited oral evaluation (D0140), since the consulting visit can also be characterized as a problem-focused evaluation. Understanding how the consultation differs from routine evaluations (it's by another provider, for a referred problem or second opinion) and from treatment (it's diagnostic, not the procedure itself) helps patients make sense of this service and the related charges. The consultation provides the valuable expert assessment that guides whether and how to proceed with treatment, fitting into the diagnostic phase of care, distinct from both the routine checkups and the eventual treatment. Knowing these distinctions helps patients understand their care and the associated coding.

Frequently asked questions

What is the D9310 dental code?

It's a consultation — a diagnostic evaluation by a dentist or specialist other than your referring dentist, to assess a specific problem and provide their opinion and recommendations. It's common when you're referred to a specialist.

When is a consultation used?

Typically when your general dentist refers you to a specialist (oral surgeon, endodontist, periodontist, etc.) for their evaluation of a specific problem, or when you seek a second opinion on a diagnosis or treatment plan.

What happens at a dental consultation?

The specialist reviews your records and examines the specific problem you were referred for, may gather additional diagnostic info, forms their expert opinion, discusses it and the options with you, and reports back to your referring dentist.

How much does a consultation cost?

Often around 75 to 250 USD depending on the specialist, for the evaluation and opinion. Any diagnostic tests or subsequent treatment are billed separately.

Can a consultation be a second opinion?

Yes — a consultation can provide an independent expert assessment of a diagnosis or treatment plan, valuable when a recommended treatment is significant, when you're uncertain, or when you want added confidence in a decision.

Does insurance cover consultations?

Often, sometimes with frequency limits (e.g., a few per year). If denied as non-covered, it can sometimes be resubmitted as a limited oral evaluation (D0140). Documentation of the consultation and problem supports the claim.

This page is an independent, plain-language explanation for general information only. It is not billing, coding, or clinical advice. For the official CDT descriptor and current-year wording, refer to the American Dental Association.