Pulpotomy

A pulpotomy is a conservative endodontic procedure that involves removing the infected or inflamed coronal pulp tissue from the crown portion of a tooth while leaving the healthy radicular (root) pulp intact. After removing the diseased tissue, a medicament such as mineral triite aggregate (MTA) or formocresol is placed over the remaining vital pulp to promote healing and maintain tooth vitality. The procedure is coded as D3220 in the CDT system. Pulpotomy is most commonly performed on primary (baby) teeth in pediatric patients when decay has reached the nerve but the root structure remains viable and the tooth is not yet near its natural exfoliation date.

The clinical distinction between a pulpotomy and a root canal is important for both treatment planning and coding. A pulpotomy preserves the root pulp and is typically indicated for primary teeth, while a root canal (D3310 through D3330) removes all pulp tissue from both the crown and root canals and is standard for permanent teeth. Some carriers cover pulpotomy on permanent teeth as a temporary emergency measure, though this indication is less common. Insurance plans frequently impose tooth-type restrictions, limiting D3220 coverage to primary teeth only, and age restrictions, covering the procedure only for patients under a specified age.

Revenue cycle teams should note that pulpotomy claims require verification of both tooth-type and age-based coverage limitations. Billing teams should confirm that the plan covers D3220, whether coverage is restricted to primary teeth, what age limitations apply, and what coinsurance rate is assigned to the procedure. Some plans classify pulpotomy under basic endodontic benefits, while others place it under pediatric services with different coverage terms. Submitting a pulpotomy claim on a permanent tooth or for a patient who exceeds the plan's age limit results in a preventable denial. Pediatric dental practices that verify pulpotomy benefits as part of their standard treatment planning workflow ensure accurate parent communication about expected costs and avoid billing complications on a procedure that is essential for managing decay in the primary dentition.