Arizona Prior Authorization

What is Arizona Prior Authorization Law?

Arizona Revised Statutes Section 20-2537 requires insurers to respond to standard prior authorization requests within 3 business days and expedited requests within 1 business day. Arizona HB 2704 (effective July 1, 2022) further prohibits insurers from making PA denials based solely on artificial intelligence; every denial must include human clinical review.

Response Timelines

• Standard PA requests: 3 business days from receipt
• Expedited or urgent PA requests: 1 business day from receipt
• Emergency services: PA not required; retrospective review allowed within 30 days

AI-Only Denials Prohibited

Arizona HB 2704 explicitly prohibits insurers from making prior authorization denials based solely on artificial intelligence determinations. Every PA denial must include human clinical review. This requirement protects patients from automated denials that may not account for individual clinical circumstances.

Denial Notice Requirements

When an insurer denies a PA request, they must provide a written notice that includes the specific clinical criteria used to support the denial. The denial notice must state the clinical reason for the denial and identify the standards applied.

Post-Service Review Rights

Insurers may conduct retrospective review of emergency services within 30 days post-service. However, they cannot retroactively deny payment if the patient obtained prior authorization and the service was medically necessary at the time it was provided.

Appeal and Review Rights

• Internal appeal: 180 days from denial notice
• External review: independent clinical review available through Arizona DIFI
• Expedited external review: available for urgent situations

Frequently Asked Questions

How to Appeal a Denied Prior Authorization in Arizona

1. Obtain the denial letter citing specific clinical criteria — Request your insurer provide a written explanation that includes the specific clinical criteria used to deny your prior authorization request.
2. Prepare clinical documentation supporting medical necessity — Gather physician notes, test results, imaging reports, and other clinical evidence demonstrating the medical necessity for the requested service.
3. File an internal appeal within 180 days of the denial — Submit your appeal to your insurance company, including the clinical documentation and a detailed explanation of why the treatment is medically necessary.
4. Request external review through the Arizona Department of Insurance — If your internal appeal is denied, contact the Arizona Department of Insurance and Financial Institutions to request independent external review by a neutral clinical reviewer.