Understanding North Carolina Workers' Compensation Form 18M: When and Why It's Used

Quick Answer: When Is Form 18M Used?

Form 18M is filed in North Carolina when an employer or the State Board of Industrial Commission (SBIC) needs to report a change in a worker's wage‑loss claim that affects the calculation of temporary total disability (TTD) benefits. Typical triggers include a new medical diagnosis, a change in work status, or an adjustment to the employee's average weekly wage.

What Is Form 18M?

Form 18M, officially titled "Change in Wage‑Loss Claim," is a standardized worksheet used by the SBIC to document any amendment to an existing workers' compensation claim that influences wage‑loss compensation. It ensures that both the employer and the claimant receive accurate benefit amounts based on the most current information.

Key Situations That Require Form 18M

Employers and claimants should file Form 18M in the following scenarios:

• Medical improvement or deterioration that changes the employee's ability to work.
• Return to work on a modified or light‑duty schedule.
• Discovery of a secondary injury or condition related to the original claim.
• Adjustment of the employee's average weekly wage (AWW) due to new earnings data.
• Employer‑initiated settlement offers that alter wage‑loss benefits.

How to Complete Form 18M

Step‑by‑Step Guide

1. Gather Required Information: Claim number, employee details, medical reports, and any new wage documentation.

2. Complete Section A – Claim Information: Enter the claim number, date of injury, and employer name.

3. Section B – Change Description: Clearly describe the change (e.g., "Employee returned to work on 20% light duty on 03/12/2024").

4. Section C – New Wage Data: Provide the revised average weekly wage if applicable.

5. Section D – Medical Certification: Attach a physician's statement confirming the medical basis for the change.

6. Section E – Employer Certification: The employer signs to attest that the information is accurate.

7. Submit the Form: Mail or fax the completed form to the SBIC office handling the claim within 10 days of the change.

Deadlines and Penalties

The SBIC requires Form 18M to be filed within 10 calendar days of any change that affects wage‑loss benefits. Failure to file on time can result in:

• Delayed or reduced benefits for the employee.
• Potential penalties or fines for the employer.
• Increased likelihood of disputes or hearings.

Common Mistakes to Avoid

• Missing the 10‑day deadline: Even minor changes must be reported promptly.
• Incomplete medical documentation: The physician's certification must directly address the change.
• Incorrect wage calculations: Verify the revised AWW using the SBIC's wage‑loss calculator.
• Wrong submission address: Use the specific SBIC office listed on the form's instructions.

Impact on Benefit Calculations

When Form 18M is approved, the SBIC recalculates the employee's TTD benefits based on the new data. This can result in:

• Higher benefits if the AWW increases.
• Reduced benefits if the employee returns to work and earns wages.
• Continuation of benefits at a reduced rate if the employee works part‑time.

Frequently Asked Questions

Do I need Form 18M for every return‑to‑work?

Only if the return‑to‑work changes the employee's wage‑loss calculation. A simple "light duty" arrangement that does not affect earnings may not require filing.

Can the employee file Form 18M themselves?

Yes, claimants may submit the form, but it must be signed by the employer and include medical certification.

What if the employer refuses to sign?

The claimant can request a hearing before the SBIC to compel compliance.

Reference Table: Typical Triggers and Filing Requirements

Where to Find Form 18M and Additional Resources

The official Form 18M PDF is available on the North Carolina Department of Labor website. Additional guidance can be found in:

• SBIC Workers' Compensation Handbook (Chapter 4)
• North Carolina Wage‑Loss Calculator (online tool)
• Employer's Guide to Reporting Changes (PDF)

Staying compliant with Form 18M requirements helps protect both employee benefits and employer liability.