D5721

Rebase Mandibular Partial Denture - CDT Code Guide

Prosthodontics, removable/Denture Rebase Procedures

Overview

CDT code D5721 pertains to the procedure of rebasing a mandibular partial denture. This process involves replacing the base material of the denture without changing the occlusal relationship. Rebasing is typically necessary when the denture base has deteriorated or no longer fits properly due to changes in the oral cavity, such as bone resorption or tissue shrinkage. This procedure helps restore the fit and function of the denture, ensuring patient comfort and effective mastication. Dental professionals may perform a rebase when adjustments or relines are insufficient to achieve the desired fit.

When to Use This Code

  • When the mandibular partial denture base has deteriorated or cracked.
  • In cases of significant bone resorption affecting the fit of the denture.
  • When the denture base material has become discolored or compromised.
  • If the patient experiences discomfort due to an ill-fitting denture base.
  • When relining the denture does not adequately improve fit and function.

Documentation Requirements

  • Detailed clinical notes describing the condition of the existing denture base.
  • Patient's oral health history and any changes since the last denture fitting.
  • Documentation of the patient's symptoms and reasons for the rebase.
  • Records of any previous adjustments or relines performed on the denture.
  • A treatment plan outlining the rebase procedure and expected outcomes.

Billing Considerations

When billing for D5721, it's important to note that this code is specifically for rebasing and not for relining or fabricating a new denture. Frequency limitations may apply, as insurance companies often restrict how often a rebase can be performed. Common modifiers include those indicating the arch (mandibular) and whether the procedure is initial or subsequent. Verify with the patient's insurance provider for coverage details and any pre-authorization requirements.

Related CDT Codes

Frequently Asked Questions

Rebasing involves replacing the entire base material of the denture, while relining adds material to the existing base to improve fit.

Source: CDT 2023 © American Dental Association

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