What Is External Review
An external review is a formal appeal of a denied medical claim decided by an independent review organization (IRO) outside your insurance company. Unlike an internal appeal where the insurer reconsiders its own decision, an external review brings in a neutral third party. The IRO's decision is binding on the insurance company, meaning they must accept and act on the outcome.
When You Qualify for External Review
You can request an external review only after your insurance company denies an internal appeal. Federal regulations under the Patient Protection and Affordable Care Act (ACA) guarantee this right for most health plans. State insurance departments enforce these rules, and timeframes vary slightly by state, but the insurer typically must respond to an external review request within 72 hours of receipt.
Your claim must involve a medical necessity determination to qualify. If your insurer denied coverage because a treatment wasn't medically necessary, or because you lack prior authorization, an external review can challenge that decision. Claims denied solely for administrative reasons (like filing deadlines or missing paperwork) may not qualify unless the denial directly impacts medical necessity.
The External Review Process
- File the request: Submit a written external review request to your insurance company within the state deadline, typically 60 days after the internal appeal denial. Include your claim details, your EOB (Explanation of Benefits), and any medical records supporting medical necessity.
- Expedited vs. standard: Most reviews take 30 days (standard review). If your condition is serious or life-threatening, request expedited review, which must be completed within 72 hours. The IRO may extend expedited timelines by 14 calendar days if needed for additional information.
- IRO assignment: Your state insurance department maintains a list of approved IROs. The insurer assigns your case to one, which then selects a physician reviewer in your treatment area with relevant specialty knowledge.
- Documentation review: The physician reviewer examines your medical records, the insurer's denial rationale, your doctor's clinical notes, and relevant medical literature on the treatment's necessity.
- Decision: The IRO issues a written decision stating whether the treatment meets medical necessity standards. The insurer must implement the decision within 30 days if the review favors you.
Key Advantages Over Internal Appeals
An external review removes the conflict of interest inherent in internal appeals. Your insurance company won't review its own denial decision. The IRO physician has no financial stake in denying your claim and must base decisions on clinical evidence, not profit margins. Studies show external reviews overturn insurance denials in roughly 30% to 40% of cases, depending on the treatment type and state.
If you win an external review, the insurer must cover the denied service and reimburse any out-of-pocket costs you've already paid. Some states also allow you to pursue additional remedies through their insurance departments if the insurer fails to comply.
What to Submit With Your Request
- Your complete EOB showing the denial reason and dates
- The internal appeal decision letter
- All medical records from your treating physician, including clinical notes and test results
- Your doctor's statement explaining why the treatment is medically necessary for your condition
- Any peer-reviewed studies or clinical guidelines supporting the treatment
- A copy of your insurance plan's coverage language for the denied service
Common Questions
- Do I need a lawyer for external review? No. External review is designed for patients to use without legal representation. However, if you've already exhausted external review and want to pursue litigation, a lawyer becomes valuable. Many patient advocacy organizations and state insurance departments provide free guidance on the external review process.
- Can my insurer retaliate or increase my premiums after I request external review? No. Federal law prohibits insurers from penalizing you for filing an external review request. They cannot terminate coverage, raise rates, or deny future claims based solely on your appeal.
- What if the external review decision goes against me? You can file a complaint with your state insurance department and request they investigate whether the insurer followed proper procedures. Some states allow additional appeals to the commissioner's office. Litigation is also an option if the claim amount justifies legal costs.