Dental Billing Services

A general dental office bills a wide mix of services on every claim day. Exams, x-rays, cleanings, fillings, crowns, and extractions each follow different plan rules. Dental billing uses CDT codes, not CPT, and most patients are covered by a separate dental plan with its own limits, frequencies, and waiting periods.

Some care also crosses into medical coverage, such as an infection or an injury. That is called medical-dental cross-billing, and it needs careful coding and documentation. Westmont Revenue Partners connects dental practices with vetted dental billing experts who understand these rules and can support your front-end and back-end revenue cycle.

Who this is for

• Solo and group general dentists
• Multi-location dental practices and dental support organizations
• Practices that accept a mix of PPO, HMO, Medicaid, and self-pay patients
• Offices that want help with claims, patient balances, or aging accounts
• New practices setting up payer enrollment and fee schedules

What gets billed

• Periodic, comprehensive, and limited exams
• Bitewings, periapical images, and full-mouth series
• Adult and child cleanings
• Fluoride varnish and sealants
• Tooth-colored fillings
• Crowns and other indirect restorations
• Scaling and root planing
• Simple extractions
• Surgical extractions
• Referral-related services and records

Commonly billed codes

Code	Type	What it covers
D0120	CDT	Routine exam for an established patient
D0140	CDT	Limited, problem-focused exam
D0150	CDT	Full exam for a new or returning patient
D0210	CDT	Full set of intraoral x-rays
D0220	CDT	First single periapical x-ray
D0274	CDT	Four bitewing x-rays
D1110	CDT	Adult cleaning
D1206	CDT	Fluoride varnish application
D1351	CDT	Sealant on one tooth
D2391	CDT	Tooth-colored filling, one surface, back tooth
D2740	CDT	Porcelain or ceramic crown
D4341	CDT	Deep cleaning, four or more teeth in a quadrant
D7140	CDT	Extraction of an erupted tooth or exposed root
K02.9	ICD-10-CM	Dental caries, unspecified

Note

Codes are examples for orientation, not a complete list, and do not guarantee coverage or payment. Always check current code sets and payer policy.

Billing challenges in general dentistry

• Frequency limits. Plans cap exams, x-rays, and cleanings by time period. A biller checks history and eligibility first so the patient knows what to expect.
• Missing tooth clause. Some plans will not pay for a replacement of a tooth lost before coverage began. Careful intake notes help you tell the patient before treatment.
• Downgrades and alternate benefits. Plans may pay for a lower-cost material instead of the one used. A biller explains the difference and bills the patient correctly.
• Attachments and narratives. Crowns and perio care often need x-rays, charting, or a short narrative. Experienced billers know which claims need what.
• Coordination of benefits. Patients with two dental plans create order-of-payment questions. A biller confirms primary and secondary and submits in sequence.
• Cross-billing to medical. Some cases may be covered by a medical plan. A biller knows when that route is possible and what the medical plan needs.
• Patient balances. Deductibles and coinsurance create small balances that add up. Clear estimates and timely statements reduce write-offs.

How Westmont can help

• Matching you with vetted billing experts experienced in general dental billing
• End-to-end revenue cycle support, from eligibility checks to payment posting
• Denial management and appeal follow-up
• Support with payer enrollment and credentialing
• Help sorting dental plan claims from medical-dental cross-billing

Frequently asked questions

What is the difference between CDT and CPT codes?

CDT codes are the Current Dental Terminology set, published by the American Dental Association, and they describe dental procedures. CPT codes are published by the American Medical Association and describe medical procedures. Dental offices bill most claims with CDT. Some cases may require CPT and ICD-10 codes on a medical claim instead, depending on the payer and the service.

Why was my dental claim denied for frequency?

Many dental plans limit how often they will pay for services such as cleanings, bitewings, and exams. If a visit falls inside that window, the plan may deny it. A biller checks the patient's history before the visit and can tell you what the plan is likely to cover. Always confirm benefits with the plan itself.

Can dental procedures be billed to medical insurance?

Sometimes. Care tied to an injury, infection, or a medical condition may fall under a medical plan, and payers set their own rules. This is called medical-dental cross-billing. It usually needs medical codes, diagnosis codes, and clear notes. Coverage varies widely, so verify with the specific plan before billing.

Do I need a separate billing process for dental plans?

In most cases, yes. Dental plans use their own forms, codes, and fee schedules, and they pay on different rules than medical plans. Many practices keep dental and medical claims in separate workflows. A dental billing company can set up each one so claims go to the right plan the first time.

Should I outsource dental billing?

Many owners consider it when claims pile up, denials rise, or staff time goes to the phones instead of patients. Outsourcing can free your team and bring in specialist knowledge. Weigh the cost, the reporting you receive, and how well the biller works with your software before you decide.

Related billing services

• Orthodontics
• Periodontics
• Endodontics
• Pediatric Dentistry
• Prosthodontics
• Dental Oral Surgery