Codes for Dental Procedures – Simple Guide for Smooth Dental Billing

Codes for dental procedures (called CDT codes) are standardized names and numbers used to describe every dental service—from routine checkups and X-rays to fillings, crowns, extractions, and implants. Each code starts with “D” followed by four digits (for example, D0120 for a periodic oral exam or D1110 for an adult cleaning). Using the correct code helps clinics document treatment clearly, file insurance claims correctly, and get faster approvals with fewer denials. These codes are updated every year to include new treatments and refine old ones, so staying current reduces billing errors and keeps records compliant. In short, CDT codes create a common language between dentists, patients, and insurers—saving time, avoiding confusion, and improving cash flow for the practice. For an easy, step-by-step overview and must-know codes, see Dental Codes 101.