Here is a pattern I see constantly. An injured worker comes in and tells me that four different doctors have requested an MRI, all four requests were denied, the pain has not gone away, and the insurance company will happily authorize physical therapy and pain medication but will not approve the one test that would actually show what is wrong.
That worker usually concludes the insurance company does not believe they are injured. That conclusion is understandable, and it is usually wrong. What is actually happening is a specific, regulated process called utilization review, and understanding it changes what you can do about it.
The Questions Injured Workers Actually Ask About Denied Treatment
- Four doctors requested an MRI and every request was denied. How is that possible?
- Why will they pay for physical therapy but not imaging?
- My surgery was denied by someone who never examined me. Is that legal?
- The reviewer got the facts of my medical records wrong. What do I do?
- Does a denied MRI mean my whole claim is denied?
- Can my doctor just ask again?
The Single Most Important Distinction
A treatment denial is not a claim denial.
These are completely different things, and conflating them causes real harm. Your claim can be fully accepted, with the carrier paying benefits and admitting your injury is work related, and you can still have an MRI request denied. The carrier is not saying you are not injured. It is saying that this particular treatment, requested in this particular way, does not meet the medical necessity standard it is required to apply.
Who Actually Decides Whether You Get Treatment
Not your doctor. Not your adjuster, technically. Not you.
When your treating physician wants to provide treatment, they submit a Request for Authorization. That request goes to utilization review under Labor Code section 4610, where a physician reviewer decides whether the treatment is medically necessary. That reviewer usually never examines you and often practices in another state.
The reviewer measures your request against the Medical Treatment Utilization Schedule, California’s adopted treatment guidelines. This is why the MRI pattern happens. The MTUS generally calls for a documented course of conservative care, with specific findings, before advanced imaging is indicated. A request that does not document those findings gets denied on the paperwork, no matter how obviously the patient needs the scan.
Four denials in a row usually means four requests that did not build the record the guidelines require. That is a fixable problem. It is a very different problem from the insurance company thinking you are faking.
UR Deadlines
For a standard request, UR must decide within 5 business days of receiving the information reasonably necessary to make the determination. Deadlines matter here. A UR decision that is not timely made can lose its effect, which is one of the first things I check.
Under the utilization review regulations that took effect April 1, 2026, if a carrier receives an incomplete RFA it must return it within 5 business days or the RFA is deemed accepted as complete. That closed a real loophole, where carriers would sit on a request and then deny it late for missing records.
UR and IMR Are Not the Same Thing
This trips up nearly everyone.
Utilization review is the insurance company’s process, run by a reviewer the carrier pays.
Independent Medical Review is the appeal. Under Labor Code sections 4610.5 and 4610.6, when UR denies, modifies, or delays treatment, the dispute goes to IMR, handled by an independent organization contracted by the state rather than by a judge.
This is the part injured workers find hardest to accept: a workers’ compensation judge generally cannot overrule a medical necessity decision. The Legislature routed those disputes to IMR instead. A judge can address whether UR was procedurally valid and timely, which is a genuine and useful avenue, but the judge cannot simply order your MRI because the denial seems unreasonable.
IMR Deadlines Are Short, and One Is Very Short
For a standard UR denial or modification, you generally have 30 days from the decision to file for IMR.
For a drug-only request under the MTUS formulary, the window is 10 days. That change took effect April 1, 2026, and it is brutal in practice. Ten days is not much time for a letter to reach you, for you to understand what it says, and for the appeal to be filed correctly on the current DWC form.
There is a related trap worth knowing. If a physician puts a drug and a non-drug item, say a medication and physical therapy, on the same RFA, the request generally defaults to the longer standard timeline. When speed matters, drugs should go on their own dedicated RFA.
If the Reviewer Got Your Records Wrong
This complaint comes up often, and it is frequently accurate. Reviewers work fast, and records get misread.
The frustrating truth is that IMR grounds for appeal are narrow. Under Labor Code section 4610.6(h), an IMR determination can be challenged on limited bases such as fraud, conflict of interest, bias, or a determination that was the result of a plainly erroneous express or implied finding of fact. “The reviewer was wrong about the medicine” is generally not enough on its own.
The more productive route is usually forward, not backward. A new request, properly documented, addressing exactly what the denial said was missing, is often faster than fighting the old one.
Can My Doctor Just Ask Again?
Yes, but with an important limit. After an IMR determination, the same treatment generally cannot be re-requested for 12 months unless there is a documented change in facts material to the basis of the decision.
That phrase is the key that unlocks the door. A new objective finding, a failed course of therapy, a new diagnostic result, or a documented worsening can support a fresh request. The physician needs to say so expressly and attach the supporting documentation. Coaching treating physicians on how to write that language is a routine part of what I do.
What If Multiple Doctors Recommend the Same Treatment?
Emotionally this feels like it should be decisive. Legally it is not. Utilization review does not count votes. Ten physicians recommending an MRI does not override the guidelines if none of the requests document the findings the guidelines require.
What actually moves these cases is one well-documented request that speaks directly to the MTUS criteria, or a medical-legal evaluator who addresses the need for treatment in a report the carrier has to reckon with.
Common Misconceptions
That a treatment denial means the claim is denied. They are separate. Accepted claims have treatment denied constantly.
That a denied MRI means they think you are faking. It usually means the request did not document what the guidelines require.
That your doctor decides your treatment. In California workers’ compensation, your doctor requests. Utilization review decides.
That a judge can order the treatment. Generally not on medical necessity. That is what IMR is for. A judge can address whether UR was timely and procedurally valid.
That you can appeal whenever you get around to it. Thirty days for standard denials, and only 10 days for drug-only formulary denials.
What to Do When Treatment Is Denied
- Read the denial letter for the stated reason. It usually tells you precisely which criterion was not met.
- Calendar the IMR deadline immediately. Check whether the denial was drug-only, which cuts your window to 10 days.
- Check whether UR was timely. A late UR decision can lose its effect.
- Bring the denial to your treating physician and ask them to address the stated deficiency directly in a new request.
- Do not stop treating with what is authorized. Documented conservative care is often the prerequisite the guidelines want to see.
- Get advice before the deadline runs. These windows are short and unforgiving.
Frequently Asked Questions
Why was my MRI denied in California workers’ comp?
Usually because the request did not document the conservative care and clinical findings the Medical Treatment Utilization Schedule requires before advanced imaging. It is a documentation problem far more often than a judgment that you are not injured.
Does a denied MRI mean my workers’ comp claim is denied?
No. Treatment denials and claim denials are different. An accepted claim can have individual treatment requests denied through utilization review.
What is the difference between UR and IMR?
Utilization review is the insurance company’s process for deciding whether requested treatment is medically necessary. Independent Medical Review is the state-administered appeal of a UR denial, modification, or delay.
How long do I have to file for IMR in California?
Generally 30 days from the UR decision. For drug-only requests under the MTUS formulary the window is only 10 days, effective April 1, 2026.
Can a judge overturn a denied MRI or surgery?
A workers’ compensation judge generally cannot decide medical necessity, which is routed to IMR. A judge can address whether the utilization review was timely and procedurally valid, which is a meaningful avenue when UR deadlines were missed.
Can my doctor request the same treatment again after a denial?
After an IMR determination, the same treatment generally cannot be requested again for 12 months unless the physician documents a change in facts material to the basis of the denial, such as a new objective finding or failed course of care.
Denied Treatment Is Usually Fixable
Most treatment denials I see are not hopeless. They are requests that did not say the right things in the right order, on deadlines nobody told the worker about. If your California treatment or surgery has been denied, contact my office for a free consultation.
Ryan D. Kayrell, PC represents injured workers throughout California from Irvine, Orange County. This page is general information about California workers’ compensation law, not legal advice for your situation, and reading it does not create an attorney-client relationship.