Onlay Resin-Based Composite - CDT Code Guide
Overview
CDT Code D2662 refers to the placement of an onlay made from resin-based composite material, covering two surfaces of a tooth. This procedure is typically used when a tooth has sustained moderate damage that cannot be effectively restored with a simple filling but does not require a full crown. The onlay helps restore the tooth's function and aesthetics by covering the damaged area and providing structural support. Commonly, this procedure is performed on molars or premolars where the chewing surfaces are compromised. Dental professionals choose this option for its durability and ability to closely match the natural tooth color, providing a seamless restoration.
When to Use This Code
- When a tooth has moderate decay or fracture involving two surfaces.
- When a previous filling has failed and more extensive coverage is needed.
- In cases where a patient prefers a less invasive option than a full crown.
- When aesthetics are a priority, and a natural tooth color match is desired.
- For patients with adequate tooth structure remaining to support an onlay.
Documentation Requirements
- Detailed chart notes describing the tooth surfaces involved.
- Pre-operative and post-operative radiographs showing the extent of decay or damage.
- Clinical photographs, if applicable, to document the condition before and after treatment.
- Patient consent forms acknowledging understanding of the procedure.
- Detailed billing notes specifying the materials used and surfaces covered.
Billing Considerations
When billing for D2662, ensure that the procedure is not performed more frequently than allowed by the patient's insurance plan. Common modifiers may include those indicating the specific tooth number. Verify coverage for resin-based composite materials as some plans may have restrictions. Coordination with insurance for pre-authorization can prevent claim denials.
Related CDT Codes
Frequently Asked Questions
An onlay covers only part of the tooth, typically two or more surfaces, while a crown covers the entire tooth.
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