How to Obtain Your Injury Number from Missouri's Department of Workers' Compensation

To get an injury number from the Missouri Department of Workers' Compensation, start by locating your claim's case number—usually found on the initial claim form or any correspondence from the employer's insurance carrier. With that number, you can access the Missouri Workers' Compensation Portal (MWCP) online, call the department's claim services line at 1‑800‑477‑9422, or submit a written request to the Office of Workers' Compensation, providing your name, Social Security number, employer, and the claim's case number. The department will confirm your identity and return the injury number, which uniquely identifies the specific injury within your claim.

Why the Injury Number Matters

The injury number is a separate identifier from the overall claim number; it tracks each distinct injury or illness reported on a single workers' comp claim. It is used when filing medical bills, requesting benefits, or appealing a decision, ensuring the correct injury is referenced in all communications.

Online Retrieval via the MWCP

The Missouri Workers' Compensation Portal offers a secure, mobile‑friendly interface for claimants. After registering with your case number and personal details, select "View Claim Details" and locate the "Injury Number" field. The portal also lets you download claim documents and check benefit status, which is useful for mobile users who need quick access while on the go.

Phone Request Procedure

If you prefer speaking to a representative, call the claim services line during business hours (8 a.m. – 5 p.m. CST). Be ready to provide:

• Your full name and contact information
• Social Security number (last four digits are sufficient for verification)
• Employer name and address
• Case number from your original claim form

The agent will verify your identity and read the injury number aloud or email it to the address on file.

Written Request Option

For those who need a paper trail, send a letter to:

Office of Workers' CompensationP.O. Box 1140Jefferson City, MO 65102

Include the same identifying information listed above and a brief statement requesting the injury number. Certified mail is recommended to confirm receipt.

Common Issues and How to Resolve Them

Missing or incorrect case numbers are the most frequent roadblocks. If you cannot locate the case number, contact your employer's HR department or the insurance carrier that issued the initial claim packet. In cases where the claim has been closed, the injury number remains in the department's records, but you may need to request a copy of the final claim summary to retrieve it.

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