What Is Internal Appeal
An internal appeal is a formal request asking your health insurance company to reconsider and overturn a denied claim. The insurer assigns a different reviewer, typically someone uninvolved in the original denial decision, to examine your case. This is your first step after receiving an adverse determination on your Explanation of Benefits (EOB).
Internal Appeal vs External Review
You must exhaust the internal appeal process before pursuing an external review. Internal appeals are handled entirely by your insurance company using their own review staff. An external review, by contrast, involves an independent third party outside the insurance company who evaluates whether the denial was medically justified. Most states require insurers to complete internal appeals within 30 days for standard requests and 72 hours for expedited requests related to urgent care.
The Process and Timeline
After receiving a denial notice, you typically have 180 days from the date of the EOB to file an internal appeal. Your appeal should include your claim number, the specific service denied, your clinical records supporting medical necessity, and any statements from your treating physician explaining why the treatment was necessary. Some insurers allow online submission through their patient portal, while others require written requests by mail or fax.
The reviewer assigned to your appeal must have relevant clinical expertise. For example, if your denial involved orthopedic surgery, the reviewer should be a physician with orthopedic background. This requirement exists under most state insurance regulations, though specific rules vary by state.
Common Reasons for Denials That Trigger Appeals
- Lack of prior authorization for the procedure or treatment
- Service deemed not medically necessary based on insurer guidelines
- Out-of-network provider billing when in-network option was available
- Missing or incomplete clinical documentation at time of original review
- Treatment considered experimental or investigational by the insurer's medical policy
How to Strengthen Your Appeal
Submit clinical evidence showing medical necessity. Include recent lab results, imaging reports, clinical notes from your provider, and any peer-reviewed studies supporting the treatment. If your initial claim lacked prior authorization, request it retroactively in your appeal and explain why it wasn't obtained beforehand. Some insurers will reverse denials if prior authorization is obtained during the appeal window.
Write a clear narrative explaining your medical history and why this specific treatment addresses your condition. Reference your insurer's own medical policies if they support your case, as reviewers must follow those standards. Many patients succeed by requesting the insurer's specific denial criteria in writing, then directly addressing each point in their appeal response.
Common Questions
- What happens if my internal appeal is also denied?
- You can then request an external review through your state's insurance commissioner's office or through an independent review organization designated by your state. Your insurer must inform you of this right in the denial letter. External reviews typically take 30 to 60 days depending on urgency and state regulation.
- Do I need an attorney to file an internal appeal?
- No, you can file independently. However, if your claim involves high-dollar amounts or complex medical issues, having documentation reviewed by someone familiar with your insurer's medical policies can improve outcomes. Some patient advocacy organizations offer free appeal assistance.
- Can my doctor help with the internal appeal?
- Yes, and you should ask them to. Your physician can submit a peer-to-peer review request directly to the insurer's reviewing physician, which often carries significant weight. Many appeals succeed after a peer-to-peer conversation clarifies medical necessity that may have been missing from written records.