A denial letter looks final. It is not but it becomes final faster than almost anything else in Arizona law. Before reading anything about why your claim was rejected, check the date on the Notice of Claim Status, because the response window is 90 days and missing it ends the matter permanently.
The Deadline That Matters Most
Ninety days from the Notice of Claim Status to file a Request for Hearing. Under A.R.S. § 23-947, a party who disagrees with a notice or award generally has 90 days from the mailing date to request a hearing with the Industrial Commission of Arizona.
Miss it and the notice becomes final and res judicata meaning it is treated as decided, and the denial stands regardless of how strong the underlying claim was. Carriers are not required to remind you.
The clock starts when the notice is mailed, not when you read it or when you finish arguing with the adjuster. Calendar is the day anything arrives from the carrier.
Why Arizona Claims Get Denied
Most denials fall into six categories, and each has a specific counter.
“The claim was filed late.” A.R.S. § 23-1061 requires a claim to be filed within one year after the injury occurred or the right to compensation accrued. But for gradual conditions repetitive strain, hearing loss, occupational disease the clock generally runs from when the connection to work became reasonably apparent, not from the first twinge. A denial that treats a manifest date as an injury date is challengeable.
“It didn’t arise out of and in the course of employment.” This is the broadest denial and the most fact-dependent. Commutes, breaks, off-site errands, and employer-sponsored activities all sit in contested territory, and the answer turns on specifics rather than categories.
“It’s a pre-existing condition.” The most common denial and the most frequently misapplied. Arizona compensates for the aggravation of a pre-existing condition; the work injury need only be a contributing cause, not the sole cause. A carrier’s independent medical examiner attributing everything to degenerative changes on an MRI is stating an opinion, not a rule.
“There’s no medical evidence connecting it to work.” Often true, and often fixable. A treating physician has to causally relate the condition to the work event in writing. Emergency records that say “back pain” without mentioning what you were doing create this gap, and it can be closed with a supplemental report.
“You’re an independent contractor.” Classification turns on the actual working relationship rather than what a contract or a 1099 says. And where the employer carried no coverage at all, it loses exclusive-remedy protection and can be sued directly using a different and often better route.
“The account isn’t supported.” Unwitnessed injuries, a gap between the injury and reporting, or an employer disputing your version. Arizona requires reporting to the employer forthwith, and delay is the first thing a carrier uses. Our guide to the mistakes that sink claims covers what makes this worse.
What the Appeal Ladder Actually Looks Like
Each rung has its own deadline, and each is a hard stop:
| Step | Deadline |
| Carrier issues a Notice of Claim Status accepting or denying | 21 days after the ICA notifies it the claim was filed |
| You file a Request for Hearing with the ICA | 90 days from the Notice A.R.S. § 23-947 |
| Hearing before an Administrative Law Judge | Generally scheduled a few months out; discovery, depositions and medical testimony in between |
| ALJ issues an Award; it becomes final unless you file a Request for Review | 30 days |
| Petition for Special Action to the Arizona Court of Appeals after the Decision Upon Review | 30 days |
The Industrial Commission publishes its own FAQs on the hearing process, and one line in them is worth noting: the employer and insurance company will have a lawyer. You may hire one or represent yourself.
A hearing is not a formality. It involves discovery, medical releases, likely a deposition, and testimony from physicians on both sides and hearsay may be considered in compensation proceedings, which changes what is worth developing.
What If the Claim Was Never Properly Filed?
You can file it yourself. A workers’ compensation claim in Arizona usually starts with the Worker’s and Physician’s Report of Injury completed at your first medical visit, the “pink form” which the provider sends to the ICA.
That step fails regularly. The form never gets completed, the clinic does not send it, or an employer discourages the report. In that situation an injured worker can file directly with the Industrial Commission using its worker-only claim form rather than waiting on anyone else. If you are unsure whether a claim was ever actually opened, that is worth confirming with the ICA directly rather than assuming.
Is There a Second Claim Nobody Mentioned?
Often, and it is worth more than the comp claim. Workers’ compensation pays medical treatment and a portion of lost wages pays nothing for pain and suffering. Where someone other than your employer caused the injury, a separate claim against that third party does.
A.R.S. § 23-1022 makes compensation the exclusive remedy against your employer, but A.R.S. § 23-1023 preserves a claim against another driver, a general contractor who is not your employer, a property owner, or an equipment manufacturer. That is where the full damages come from and it matters most in construction site injuries, where a site has several companies on it and only one is your employer.
One warning that catches injured workers constantly. If you are receiving compensation benefits, § 23-1023 generally gives you one year to institute that third-party action, after which it is deemed assigned to the compensation carrier which may then prosecute it, settle it, or hand it back on its own schedule. That is half the ordinary two-year deadline, and it is why the two claims run on separate tracks with different lienholders.
Frequently Asked Questions
How long do I have to appeal a workers’ comp denial in Arizona? Ninety days from the mailing date of the Notice of Claim Status, under A.R.S. § 23-947. You appeal by filing a Request for Hearing with the Industrial Commission of Arizona. If the deadline passes, the notice generally becomes final and res judicata and the denial stands.
Can my claim be denied because of a pre-existing condition? It is frequently denied on that basis, but Arizona compensates for the aggravation of a pre-existing condition; the work injury need only be a contributing cause rather than the sole cause. A carrier’s examiner attributing your symptoms to degenerative changes is offering an opinion that can be met with contrary medical evidence.
What happens at an ICA hearing? An Administrative Law Judge hears the case, generally a few months after the Request for Hearing is filed. It involves discovery, medical releases, likely a deposition, and testimony from physicians for both sides. The employer and insurer will be represented by a lawyer, and the ALJ then issues an Award.
What if I lose at the hearing? The Award becomes final unless a Request for Review is filed within 30 days. After the Decision Upon Review, a Petition for Special Action may be filed with the Arizona Court of Appeals within a further 30 days. Both windows are short and neither is extended automatically.
My employer never filed my claim. What should I do? File it yourself. A claim usually starts with the Worker’s and Physician’s Report of Injury completed at your first medical visit, but an injured worker may file directly with the Industrial Commission using its worker-only claim form. If you are unsure whether a claim was ever opened, confirm with the ICA rather than assuming.
Does workers’ comp pay for pain and suffering? No. Compensation covers medical treatment and a portion of lost wages by formula, with no award for pain and suffering. Those damages are only available through a claim against a responsible third party, which is why identifying one matters so much.
Getting Help With an Appeal
A denial is a position taken by an adjuster within 21 days, often before the medical picture was complete. It is reviewable but only inside a 90-day window that started when the notice was mailed.
If your claim was denied, searching for workers compensation attorneys near me who specifically handle ICA appeals is your fastest path to a reversal.
Harris Injury Law, PLLC 1136 E Campbell Ave, Phoenix, AZ 85014 (480) 800-4878
Jason A. Harris practices in both personal injury and workers’ compensation, which means a denied comp claim and any third-party claim get handled together rather than as two disconnected files. Consultations are free. Request a consultation, meet our attorneys, or read our fuller Arizona workers’ compensation guide and what to do when a work injury claim is denied. Every case depends on its own facts; no outcome can be promised or predicted.
This article provides general information about Arizona law and is not legal advice. Reading it creates no attorney-client relationship. Arizona statutes and Industrial Commission procedures change. Consult a licensed Arizona attorney about your situation.
Reviewed by Jason A. Harris, Harris Injury Law, PLLC.
