D9946 Dental Code
The D9946 dental code is a specialized procedural code used in dentistry to classify a specific type of occlusal guard adjustment. This code is part of the Current Dental Terminology (CDT) maintained by the American Dental Association (ADA). It is essential for dental professionals to understand this code thoroughly, as it impacts billing, insurance claims, and patient care.

Why is D9946 Important?
- Ensures accurate documentation of occlusal guard services
- Facilitates proper insurance reimbursement
- Helps in tracking patient treatment plans
This article will provide an in-depth exploration of the D9946 dental code, including its applications, billing considerations, and best practices for implementation.
2. What Does D9946 Cover?
The D9946 code is defined as:
“Occlusal guard adjustment” – This refers to the modification of an existing occlusal guard (night guard, bite guard, or splint) to improve fit, comfort, or functionality.
Key Components of D9946
- Adjustment of an existing guard (not the fabrication of a new one)
- Material modifications (reshaping, trimming, or adding material)
- Functional optimization (ensuring proper bite alignment)
When to Use D9946
- When a patient returns for a follow-up visit due to discomfort
- If the guard no longer fits properly due to dental changes
- When the guard requires minor alterations for better performance
3. Clinical Applications of D9946
Dentists use D9946 in various clinical scenarios:
A. Bruxism Management
Patients with bruxism (teeth grinding) often require occlusal guard adjustments as their bite changes over time.
B. TMJ Disorder Treatment
Temporomandibular joint (TMJ) patients may need frequent adjustments to ensure proper jaw alignment.
C. Post-Orthodontic Care
After braces or aligner treatment, bite guards may need refinement.
4. Differences Between D9946 and Similar Codes
Code | Description | Key Difference |
---|---|---|
D9946 | Occlusal guard adjustment | Modifies an existing guard |
D9944 | Occlusal guard – hard appliance | Covers new hard guard fabrication |
D9945 | Occlusal guard – soft appliance | Covers new soft guard fabrication |
5. Insurance and Reimbursement for D9946
Coverage Policies
- Some insurers cover D9946 under medical necessity
- Frequency limitations may apply (e.g., once per 6 months)
Tips for Successful Claims
- Provide detailed clinical notes
- Attach pre- and post-adjustment photos if possible
- Verify patient eligibility before treatment
6. Common Challenges with D9946 Billing
- Denials due to lack of documentation
- Confusion with D9944/D9945
- Frequency limitations imposed by insurers
7. Best Practices for Dentists Using D9946
✅ Document every adjustment in patient records
✅ Educate patients on the need for adjustments
✅ Verify insurance coverage beforehand
8. Patient Communication and Informed Consent
- Explain why adjustments are necessary
- Discuss potential costs if insurance denies coverage
- Provide care instructions post-adjustment
9. Case Studies and Real-World Examples
Case Study 1: TMJ Patient Requiring Multiple Adjustments
A 45-year-old patient with TMJ disorder needed three D9946 adjustments within a year due to bite changes. Proper documentation ensured full reimbursement.
10. Future Trends in Dental Coding
- AI-assisted coding may reduce errors
- More insurers may adopt D9946 as awareness grows
11. Conclusion
The D9946 dental code is crucial for occlusal guard adjustments, ensuring proper patient care and insurance compliance. Dentists must document thoroughly, communicate with patients, and stay updated on billing policies to maximize reimbursement.
12. Frequently Asked Questions (FAQs)
Q1: How often can D9946 be billed?
A: Typically once every 6 months, but check with individual insurers.
Q2: Does D9946 cover repairs?
A: No, repairs fall under different codes (e.g., D2999).
Q3: Can D9946 be used for sports guards?
A: No, it’s specifically for occlusal guards related to bruxism/TMJ.