Healthcare Benefits Appeal: Standard Process and Key Timelines

Getting a denial for a healthcare claim or pre-authorization request is frustrating, but it isn't the final word. Federal law, primarily ERISA and the ACA, sets a mandatory appeals process that health plans have to follow. Understanding that process helps you pursue the coverage you or your employees are entitled to. The deadlines are strict and worth tracking. The standard internal and external appeals process works as follows, with the timelines that apply.

The Foundation: Your Plan Documents and ERISA Rights

First thing after a denial: review your Explanation of Benefits (EOB) or denial notice. By law, it must state the specific reason (for example, "not medically necessary," "out of network," or "experimental") and explain your right to appeal. The controlling document is your Summary Plan Description (SPD). That document spells out the plan's coverage rules and the formal appeals procedure. ERISA gives participants in employer-sponsored plans (except government or church plans) the right to a "full and fair review" of claim denials. Don't underestimate that right.

The Standard Two-Stage Appeals Process and Timelines

The ACA sets a clear appeals process for most group health plans. The deadlines below are law for non-grandfathered plans, and most others follow similar rules.

1. Internal Appeal (First Level)

You file a formal appeal with your health plan in writing, asking them to take another look at their decision.

• Timeline to File: You have at least 180 days from the denial notice to submit your appeal. Federal law sets 180 days as the floor, so a plan can give you more time but cannot require less. Check your SPD for the exact window.
• Plan's Decision Deadline: For urgent denials, the plan must decide within 72 hours. For pre-service denials (prior auth), they have 30 days. For post-service denials, 60 days.
• What to Gather: Evidence matters. Get a letter from your doctor explaining medical necessity, along with relevant clinical studies, peer-reviewed articles, and any evidence that counters the plan's denial reason.

2. External Review (Second Level)

If your internal appeal still gets denied, you can, in most cases, request an external review. An independent, third-party organization, not your health plan, makes a final, binding decision. It's your best shot if the plan plays hardball.

• Timeline to File: You have 4 months (120 days) from the final internal denial notice to request external review.
• Reviewer's Decision Deadline: For urgent cases, they decide within 72 hours. For standard cases, 45 days.
• Binding Decision: The reviewer's decision is final and binds the plan. If they rule in your favor, the plan must pay for or authorize the service.

Which process applies depends on your plan: fully insured plans usually go through a state external review process when the state has one that meets federal standards, while self-funded employer plans generally use the federal process. Your final denial notice should name which one to use.

When the Plan Misses Its Deadline

The deadlines bind the plan as well as the employee. If a plan fails to strictly follow the internal appeal requirements, including its own decision deadline, the claim is deemed exhausted. That lets you move straight to external review, or to court, without waiting for a final internal denial. The test is strict compliance: a plan cannot excuse a missed deadline by arguing it substantially complied. A plan that ignores your appeal altogether has failed the same test. Keep your own proof of filing for this reason. Delivery receipts and dated notes show when the clock started.

Practical Tips for Your Appeal

1. Act Fast. Put every deadline on your calendar. Miss one and you could lose your rights.
2. Put It in Writing. Send everything by certified mail (or a method that gives proof of delivery). Keep a file with all correspondence, EOBs, and notes from phone calls, including rep names and dates.
3. Get Your Doctor Involved. Your doctor is your best argument. They can write a detailed medical necessity letter that directly addresses the plan's denial reason.
4. Cite Your Rights. Reference ERISA and the ACA in your written appeal. It shows you know the rules the plan is bound by.
5. Consider a Lawyer. For high-cost or complex denials, an attorney who specializes in ERISA or insurance law can make the difference, especially if you eventually need to sue.

The Employer's Role Under ERISA

For HR and benefits administrators, making the appeals process run smoothly is a fiduciary duty under ERISA. Make sure your TPA or carrier meets every deadline and sends proper notices. Good documentation protects you from lawsuits and shows employees you've got their back. Tracking denial and appeal trends can reveal gaps in your plan design or vendor relationships, and those are gaps worth fixing. WellthCare, the first Health-to-Wealth Benefit System, strengthens this process by embedding cost transparency tools, bill review, and compliance-grade recordkeeping directly into its platform, giving employers the data to fix gaps and employees a smoother path to coverage.

The appeals process has a clear structure, but it takes persistence. Know the deadlines, gather your evidence, and push back. A first denial doesn't have to be the last word.

This article is for general information only and is not legal, tax, or medical advice. Employers should consult their own advisors.