Arizona external review for health insurance denials
After the final internal appeal in Arizona, an independent organization can re-decide your claim. Arizona Department of Insurance and Financial Institutions oversees the process.
- Regulator
- Arizona Department of Insurance and Financial Institutions
- Program type
- State-administered external review
- Filing window
- Federal default: 4 months after the final internal denial (45 CFR 147.136(d)). Confirm the Arizona deadline at the official page below.
- Official page
- https://difi.az.gov/consumers/health-insurance
- Department site
- https://difi.az.gov/
What external review covers
External review applies to adverse benefit determinations involving medical judgment — denials based on medical necessity, appropriateness, level of care, effectiveness of a covered benefit, or whether a treatment is experimental or investigational. It also covers rescissions of coverage. It does not apply when the denial is based on an explicit benefit exclusion in your plan document.
For an expedited request (when the standard timeframe would seriously jeopardize life, health, or ability to regain maximum function), the reviewer must decide as soon as possible and no later than 72 hours.
How to file in Arizona
- Exhaust the insurer's internal appeals process. Keep the final adverse benefit determination letter — you'll need it.
- Open the Arizona external review page at https://difi.az.gov/consumers/health-insurance and use the request form posted there.
- Submit the final denial letter, your provider's medical necessity letter, supporting medical records, and any relevant guideline or peer-reviewed citations. The state-assigned IRO will review the full record.
- The standard decision is typically issued within 45 days. The insurer is bound by the decision if the IRO reverses the denial.
Arizona notes
Arizona's external review is administered under A.R.S. § 20-2533. Members can request standard or expedited review after exhausting internal appeals.
Upload the final denial letter. The free analysis builds the IRO submission packet: medical necessity letter, evidence list, and policy citations.