Step 2 Appeal vs External Review: Which One Actually Works

When your insurance company denies a claim, most people file one appeal and give up. But the system actually gives you multiple bites at the apple — and the second and third bites often have the best odds. Here's how the full appeal ladder works and where to focus your energy.

The Three-Level Appeal System

Under the Affordable Care Act, most health plans must offer:

• Level 1 (Internal Appeal) — reviewed by someone at your insurance company other than the original decision-maker
• Level 2 (Second Internal Appeal) — some plans offer a second internal review, often by a senior physician
• External Independent Review — reviewed by an Independent Review Organization (IRO) with no financial ties to your insurer

Grandfathered plans and some self-funded employer plans may not be required to follow ACA appeal rules. Check your Summary Plan Description.

When the Step 2 Internal Appeal Is Worth It

A second internal appeal makes sense when:

• You have new medical evidence that wasn't in your first appeal
• Your doctor can now provide a more detailed letter of medical necessity
• The denial reason was administrative (coding error, missing documentation) rather than clinical
• You've identified a specific policy exception that applies to your case

If you're just submitting the same information again, skip straight to external review. Internal reviewers are still employees of the company that denied you.

Why External Review Is Often Your Best Shot

External review is conducted by an Independent Review Organization (IRO) — a third party certified by your state or the federal government. These reviewers have no financial incentive to uphold the denial. The data bears this out:

• In states with robust external review laws, patients win 40–60% of external reviews
• Insurers are legally bound to comply with external reviewer decisions
• You can request external review even if you haven't exhausted internal appeals in urgent/emergency situations

How to Request External Review

After your internal appeal is denied (or after 72 hours for urgent care without a decision), you can request external review. Here's how:

• Request must be submitted within 4 months of receiving the internal appeal denial
• Send the request to your insurer — they are required to forward it to an IRO
• Include your complete medical record, the denial letters, and your appeal letters
• The IRO must issue a decision within 45 days (or 72 hours for urgent cases)

The Simultaneous Strategy

Nothing prevents you from filing a state insurance department complaint at the same time as your internal appeal. Regulators can apply pressure on insurers in ways that IROs cannot. In several documented cases, insurers reversed denials within days of a state complaint being filed — before any review was completed.

What to Submit at Each Level

The quality of your documentation determines the outcome more than the level you're appealing at. Every submission should include a well-structured appeal letter that:

• Quotes the insurer's denial language verbatim and rebuts it directly
• Cites peer-reviewed literature and clinical guidelines
• Includes your physician's detailed statement
• Documents any prior treatments and their outcomes