Questions & answers · Workers’ comp
My California workers' comp claim was denied. Can I challenge it?
Workers’ compDeniedCaliforniaChecked Nov 5, 2026
From K.Actuary, founded by Sangmin Kwon, ASA · sources checked 2026-11-05 · Source: California DIR · Division of Workers' Compensation · If my claim was denied View original ↗
In short
- Yes. You have a right to challenge a denial.
- Do not wait - there are deadlines.
- You start by filing a paper called an Application for Adjudication of Claim.
What this means
California's Division of Workers' Compensation says a denial means the claims administrator thinks your injury is not covered. If you get a denial letter, you have a right to challenge it. Do not delay, because there are deadlines [1]. To have a judge hear your case, you first file an Application for Adjudication of Claim [1]. File it at the DWC office in the county where you live or where you were hurt [1]. You must also serve it on the other parties, which is generally the claims administrator [1]. Then you file a Declaration of Readiness to Proceed to ask for a hearing [1]. You may speak for yourself or hire an attorney [1].
Your next step
Do not wait. Read the denial letter for dates, then file the Application for Adjudication of Claim at the DWC office for your county. The page does not give the number of days: "Don't know yet". The page says you can contact the Information and Assistance Unit if you need help with your claim.
Check it yourself
The exact filing deadline is not on this page. Disagreements about medical treatment go through a different process called independent medical review, the page says.
Where this comes from (1)
[1] California DIR · Division of Workers' Compensation · If my claim was denied · checked 2026-11-05
If the claims administrator sends you a letter denying your claim, you have a right to challenge the decision. Don’t delay, because there are deadlines for filing the necessary papers. … In order to have your case heard by a judge, you must first file an Application for Adjudication of Claim. The application must be filed at the DWC office in the county where you live or in the county where you were injured. You must…
How we found this
We matched your question to 1 official source, quoted the exact lines, and re-checked each quote against its source on 2026-11-05.
What we don’t know yet
Your own plan or notice may say something different. If your letter cites another rule, send it and we will look again.
Every answer is checked against the official rule it quotes.
Information only — not legal advice. Your plan, insurer or agency decides.
This answer quotes the official sources listed above, with the date we checked them. Your own policy, notice and state rules control. We are not your lawyer or your insurer. We don’t file, argue or negotiate claims for you — you send any letter or form yourself.
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