Getting a health insurance claim denied feels like a punch to the gut, especially when you were confident the treatment was covered. But here’s the thing: a denial isn’t the final word. Insurance companies deny claims for all kinds of reasons, and a significant number of those decisions get overturned when policyholders push back the right way.
If you’ve received that dreaded “Explanation of Benefits” showing a denial, don’t set it aside. Understanding what to do next can save you hundreds or even thousands of dollars.
Understand Why Your Claim Was Denied
Before you do anything else, read the denial letter carefully. Insurance companies are required to tell you why a claim was rejected. Common reasons include:
- The service was deemed “not medically necessary”
- The provider was out of network
- Prior authorization wasn’t obtained
- Missing or incorrect information on the claim form
- The procedure is listed as an exclusion under your plan
Knowing the exact reason shapes everything that comes next. A denial based on a billing code error, for example, is a very different problem than one based on medical necessity, and each requires a different approach.
Start with an Internal Appeal
Every insurer is required by law to offer an internal appeals process. This is your first line of defense, and it costs you nothing to file. You’ll typically have between 30 and 180 days from the date of the denial to submit your appeal, so check your letter for the specific deadline.
What to include in your appeal
A strong appeal isn’t just a letter saying you disagree. You want to build a case. Gather the following:
- A written letter clearly explaining why the denial was wrong
- A letter of medical necessity from your doctor
- Relevant medical records, test results, or clinical notes
- References to your policy language showing the service should be covered
- Any peer-reviewed medical guidelines that support the treatment
Say, for instance, your insurer denied coverage for a specific MRI, calling it unnecessary. Your doctor can write a letter explaining the clinical reasons it was ordered, and you can reference guidelines from a body like the American College of Radiology to strengthen your position.
Request an External Review
If the internal appeal doesn’t go your way, you can escalate to an external review. This brings in an independent organization to evaluate your case, and the insurer is legally bound by their decision. Under the Affordable Care Act, most health plans must offer this option.
External reviews are particularly powerful in cases involving medical necessity disputes or experimental treatment denials. An independent reviewer isn’t tied to your insurer’s interests, which levels the playing field considerably.
File a Complaint with Your State Insurance Department
Parallel to your appeal, consider filing a complaint with your state’s Department of Insurance. This doesn’t guarantee a reversal, but it creates an official record and can prompt the insurer to take a second look. Some states have consumer assistance programs that will even help you navigate the appeals process for free.
When to bring in a professional
If the denied amount is substantial or the case is complex, a patient advocate or healthcare attorney can be worth the investment. These professionals know how to frame arguments in the language insurers and reviewers respond to, and they understand the regulatory landscape in your state.
Keep Every Record Along the Way
Document everything. Save every letter, note the date and name of every phone call, and keep copies of everything you submit. If your case escalates, a clean paper trail can make the difference between winning and losing.
Disputing a denial takes persistence, but the odds are more in your favor than most people realize. Studies have consistently shown that a large share of appealed denials are reversed. The system has checks built into it — you just have to use them.
