Understanding Dental Code D3240

When to Use D3240 dental code

The D3240 dental code is designated for pulpal therapy (resorbable filling)—a procedure commonly performed on primary teeth, especially in pediatric dentistry. This code is appropriate when the coronal portion of the pulp is removed and a resorbable material is placed to maintain the tooth’s function until natural exfoliation. D3240 should not be confused with a full root canal treatment or with codes for permanent teeth. Use D3240 when treating a vital primary tooth that requires pulpal therapy but not a complete pulpectomy or root canal. Always confirm the tooth type and treatment rendered before selecting this code.

Documentation and Clinical Scenarios

Accurate documentation is essential for successful billing and claim approval. When using D3240, include the following in the patient’s chart:

• Tooth number and type (confirming it is a primary tooth)
• Pre-operative diagnosis and clinical findings (e.g., carious exposure, pulp vitality)
• Details of the procedure (removal of coronal pulp, type of resorbable material used)
• Post-operative instructions and follow-up plan

Common clinical scenarios include a child presenting with deep caries in a primary molar, where the pulp is exposed but the tooth is restorable and expected to remain in the mouth for several years. D3240 is not suitable for non-vital teeth or when a full pulpectomy is required—refer to D3220 for pulpal debridement in such cases.

Insurance Billing Tips

To maximize reimbursement and minimize denials when billing D3240:

• Verify patient eligibility and coverage for pulpal therapy procedures before treatment.
• Submit clear clinical notes and radiographs with the claim to support medical necessity.
• Use the correct CDT code (D3240) and ensure the tooth number matches the clinical documentation.
• Review the Explanation of Benefits (EOB) for any denials or downgrades, and be prepared to submit a claim appeal with additional documentation if needed.
• Monitor Accounts Receivable (AR) to follow up on unpaid claims promptly.

Some insurance plans may have frequency limitations or age restrictions for D3240, so always check plan details and communicate with patients about their benefits and potential out-of-pocket costs.

Example Case for D3240

Case: A 6-year-old patient presents with a deep carious lesion on tooth T (primary second molar). The pulp is exposed but vital, and the tooth is expected to remain until natural exfoliation. The dentist removes the coronal pulp and places a resorbable filling material. The procedure is documented with pre- and post-op notes, and a periapical radiograph is attached to the claim. The claim is submitted with D3240, and insurance reimburses according to plan benefits.

This example highlights the importance of proper code selection, thorough documentation, and proactive insurance communication for successful dental billing.