Understanding Dental Code D6930

When to Use D6930 dental code

The D6930 dental code is designated for the re-cementation or re-bonding of a fixed partial denture, commonly known as a bridge. This CDT code should be used when an existing fixed partial denture becomes loose or dislodged but is otherwise serviceable and does not require replacement. It is not appropriate for use if the prosthesis is fractured, damaged beyond repair, or if a new bridge is being fabricated. Proper use of D6930 ensures that your dental office receives accurate reimbursement for the clinical service provided, while also maintaining compliance with insurance carrier guidelines.

Documentation and Clinical Scenarios

Accurate documentation is essential for successful billing of D6930. Clinical notes should clearly state the reason for the re-cementation or re-bonding, such as debonding due to trauma, wear, or loss of retention. Include details about the condition of the abutment teeth, the integrity of the prosthesis, and the absence of underlying decay or pathology that would require additional treatment. Photographs, radiographs, and a narrative explaining the clinical necessity can strengthen your claim and reduce the risk of denials. Common scenarios include patients presenting with a loose bridge after eating sticky foods, or following minor trauma, where the bridge and supporting teeth remain intact.

Insurance Billing Tips

When billing D6930, always verify the patient’s insurance benefits to determine coverage for re-cementation or re-bonding procedures. Some plans may have frequency limitations, waiting periods, or may not cover repairs to prostheses placed by another provider. Submit a detailed claim with supporting documentation, including clinical notes and diagnostic images. If the claim is denied, review the Explanation of Benefits (EOB) for the reason and consider submitting a claim appeal with additional documentation. Best practices include:

• Confirming eligibility and benefits before treatment
• Attaching a narrative and images to the initial claim
• Tracking claims in your accounts receivable (AR) system for timely follow-up
• Appealing denied claims with supplementary evidence

If the bridge requires more extensive repair or replacement, consider whether another CDT code, such as D6980 (fixed partial denture repair), is more appropriate.

Example Case for D6930

Consider a patient who returns to your office six months after a bridge placement, reporting that the bridge feels loose but has not fallen out. Upon examination, you find the abutment teeth are healthy, and the bridge is undamaged. You remove the bridge, clean the abutments and the prosthesis, and re-cement it using appropriate dental adhesive. Your clinical notes document the patient’s symptoms, the absence of decay or damage, and the steps taken to re-cement the bridge. You bill D6930, attach a brief narrative and intraoral photo, and submit the claim to the patient’s dental insurance. The claim is processed and paid without delay, thanks to thorough documentation and proper code selection.