What Is an External Appeal?

What an External Appeal Means

An external appeal — also called external review or independent review — takes your denied claim out of the insurance company's internal process and places it before a neutral third party. Independent Review Organizations evaluate the medical and contractual basis for the denial without any employment or financial relationship with the payer. Their decision is typically binding on the insurer for fully insured health plans.

External review became a standard patient and provider protection under the Affordable Care Act, which requires most health plans to offer this option after internal appeals are exhausted.

Why External Appeals Matter

Internal appeal teams work for the insurer. External review introduces genuine independence into the decision. For high-dollar denials involving surgery, specialty drugs, or experimental treatments, external review is often the last structured opportunity to recover payment before litigation or write-off. State insurance departments track external review outcomes, and payers face regulatory scrutiny when denial rates at this stage are disproportionately high.

In 44 states plus the District of Columbia, external review is mandatory for qualifying denials on fully insured plans. Providers who do not know this option exists abandon claims that independent reviewers would overturn.

How an External Appeal Affects Your Claim

Requesting external review pauses the insurer's final denial and submits your case file to the Independent Review Organization. The IRO evaluates all submitted documentation — appeal letters, clinical records, payer policy — and issues a written decision within 45 days for standard cases or 72 hours for expedited urgent reviews. If the IRO overturns the denial, the payer must reprocess the claim and issue payment. If the IRO upholds the denial, your remaining options may include state insurance department complaints or legal action depending on the circumstances and dollar amount involved.

What to Do When Pursuing External Review

Confirm you have completed all required internal appeal levels or that the payer missed response deadlines that qualify you for external review. Request external review through your state insurance department portal or the payer's designated process — submission methods vary by state. Compile your complete case file: all prior appeal letters, denial letters, clinical documentation, and payer policy references. Submit before the external review deadline, typically 60 days from the final internal denial. Track the IRO case number and expected decision date.

Frequently Asked Questions

When can I request an external appeal?

You can request an external appeal after exhausting internal appeal levels or when the payer fails to respond within required timeframes. Under the Affordable Care Act, most fully insured plans must offer external review for denied claims involving medical judgment, experimental treatment, or rescission of coverage.

Is external review binding on the insurance company?

In most states, external review decisions are binding on the insurer for fully insured plans. If the independent reviewer overturns the denial, the payer must reprocess the claim and pay according to the decision. Self-funded employer plans may follow different rules depending on state law.

How long does an external appeal take?

Standard external reviews typically conclude within 45 days. Expedited external reviews for urgent medical situations must be completed within 72 hours in most jurisdictions. The independent review organization notifies both parties of the decision in writing.

Who conducts external appeals?

External appeals are conducted by Independent Review Organizations certified by state insurance departments or accredited under national standards. These organizations employ physicians and clinical experts with no financial relationship to the insurer, ensuring an impartial evaluation of the denial.