Workers' Comp Denied Your Surgery? Here's What to Do

What is Utilization Review and why did it deny my surgery?

Utilization Review is the insurer's legal process for approving treatment. A reviewer checks your request against state guidelines before agreeing to pay for care.

California law gives insurers the right to review treatment requests before paying for them. This process is called Utilization Review, or UR. It is governed by Labor Code 4610. A reviewer compares your doctor's request to a document called the Medical Treatment Utilization Schedule, or MTUS. That reviewer is typically a nurse or doctor hired by the insurer. They never examine you. The entire decision is based on paperwork your doctor submitted.

If the request does not fit the MTUS criteria, the reviewer can deny it or modify it. Your doctor may not have included enough clinical detail. The reviewer may have denied based on what was missing, not on what your actual condition requires.

Common reasons UR denials happen:

• The request lacked enough supporting medical records
• Conservative treatments like physical therapy were not tried first
• The procedure is listed as experimental in the MTUS guidelines
• The diagnosis codes did not clearly tie the injury to the need for surgery

A UR denial is a paperwork decision. The gap between the paperwork and your real medical situation is exactly where an appeal can win.

How do I appeal? What is the IMR process?

File a request for Independent Medical Review within 30 days of your denial. An independent doctor reviews your records and issues a binding decision the insurer must follow.

Under Labor Code 4610.5, you have the right to appeal any UR denial through Independent Medical Review, or IMR. The insurer cannot block this appeal. An independent organization assigns a reviewing physician. That physician has no connection to your insurer. They apply the MTUS standards but conduct a thorough review of everything your doctor submitted. The IMR decision is binding. The insurer must comply with it.

Here are the deadlines that control the process:

If your condition is urgent, request expedited IMR right away. Do not wait. The standard review takes up to 30 days after the IMR organization receives your records. The expedited review takes 3 business days. If waiting for a decision puts your health at serious risk, your doctor should document that urgency in the submission.

The IMR physician reads only what is submitted. They never examine you. The outcome depends almost entirely on what your doctor included in the original request and what additional records go into the appeal. That is the leverage point.

How can my doctor submit a stronger appeal?

Your doctor should submit full clinical records, imaging results, treatment history, and a written explanation of why this surgery is necessary for your specific injury and condition.

Most successful IMR reversals happen because the doctor sent better, more detailed information the second time. The IMR physician has more to work with. That changes the outcome. If the original Request for Authorization was thin, the appeal is the chance to fill in everything that was missing.

Ask your treating doctor to include all of the following:

• Office visit notes from every recent appointment related to your injury
• All imaging: X-rays, MRI reports, CT scans, and the written radiology interpretations
• Records showing that conservative treatment was tried and did not resolve the problem
• A written letter from your doctor stating exactly why this surgery is medically necessary for you, not just in general terms
• Peer-reviewed medical studies supporting the surgery if it is newer or not fully covered by the MTUS guidelines

Your attorney can coordinate directly with your doctor's office to gather these records before the submission deadline. A missing imaging report or a vague medical necessity letter can tip a close case the wrong way. This is not paperwork to assemble at the last minute.

If the MTUS guidelines do not specifically cover your surgery, your doctor can make an evidence-based argument that the treatment is supported by published medical literature. The IMR physician must consider that argument. This path is harder. It can still win when the documentation is solid and specific to your condition.

What if IMR still upholds the denial?

You can petition the Workers' Compensation Appeals Board, but only on narrow legal grounds. Disagreeing with the medical conclusion is not enough to reverse an IMR decision.

An IMR decision is very hard to overturn on appeal. The Workers' Compensation Appeals Board, or WCAB, can review an IMR decision only if there was a serious procedural error, fraud, or the reviewer acted outside their authority. A disagreement with the medical conclusion does not qualify. That is why winning at IMR the first time is so important.

If IMR upholds the denial, here are realistic next steps:

• Work with your doctor to gather new clinical findings and submit a fresh Request for Authorization
• Explore other treatment paths that UR is more likely to approve while you build the case for the preferred surgery
• Ask your attorney whether any procedural grounds exist to bring a WCAB petition
• Document every change in your condition going forward, because new findings support a new request

A denial today does not close the case forever. Your condition may change. New diagnostic results can support a new submission. An attorney can help you track what new evidence you need and when a second submission is ready to file. The goal is building a record that is harder to deny the next time around.