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June 3, 2025

Understanding Dental Code D8704 – Replacement of lost or broken retainer – mandibular

Learn when and how to use the D8704 dental code for lost or broken mandibular retainers, with practical billing tips and real-world documentation strategies for dental teams.

Understanding Dental Code D8704

When to Use D8704 dental code

The D8704 dental code is designated for the replacement of a lost or broken mandibular (lower jaw) retainer. This CDT code should be used when a patient requires a new retainer due to loss or irreparable damage, and not for routine adjustments or repairs. It is crucial to distinguish between replacement and repair: if the original retainer can be fixed, a different CDT code may be more appropriate. Always verify that the clinical situation meets the criteria for a full replacement before submitting a claim under D8704.

Documentation and Clinical Scenarios

Accurate documentation is essential for successful reimbursement. When using D8704, dental teams should:

  • Record the reason for replacement (e.g., lost during travel, broken beyond repair).
  • Include clinical notes detailing the patient’s history, the condition of the original retainer, and the necessity for a new appliance.
  • Attach supporting evidence such as photos of the broken retainer or a narrative explaining circumstances if the retainer is lost.

Common scenarios include patients who have completed orthodontic treatment and subsequently lose or break their retainer, or cases where the retainer is damaged due to accidental trauma. In all cases, thorough and precise documentation supports claim approval and minimizes delays.

Insurance Billing Tips

Billing for D8704 requires attention to detail and adherence to payer guidelines. Here are best practices for maximizing claim acceptance:

  • Verify insurance benefits before treatment to confirm coverage for retainer replacement. Some plans limit the frequency or number of replacements allowed.
  • Submit a pre-authorization when required, including all supporting documentation and clinical rationale.
  • Use clear narratives on the claim form, specifying why the replacement is necessary and referencing the original date of delivery if possible.
  • Monitor EOBs (Explanation of Benefits) for denials or requests for additional information, and be prepared to submit claim appeals with supplemental documentation if needed.
  • If the insurance denies the claim due to frequency limitations, discuss alternative payment options with the patient and document all communications in the patient record.

Staying proactive with insurance verification and thorough documentation helps reduce accounts receivable (AR) days and ensures smoother revenue cycle management (RCM).

Example Case for D8704

Case Study: A 17-year-old patient returns to the dental office reporting that their lower retainer was lost during a family vacation. The clinical team verifies that the original retainer cannot be located and documents the loss in the patient’s chart. After confirming the patient’s insurance covers one replacement every two years, the office submits a claim using D8704, including a narrative and the date of the original retainer delivery. The claim is approved, and the patient receives a new mandibular retainer with minimal delay.

This example highlights the importance of proper code selection, thorough documentation, and proactive insurance communication when billing for lost or broken retainers.

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FAQs

Can D8704 be used for initial delivery of a mandibular retainer?
Are there any age restrictions for billing D8704 for a replacement retainer?
What should a dental office do if an insurance claim for D8704 is denied?

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