How to Dispute a Medical Bill
Medical bill disputes are usually about a charge your insurance should have covered, a billing code error, or a surprise out-of-network charge. These take patience, but a clear, documented dispute resolves a meaningful share of them.
Whether you're calling it a refund request, a chargeback, disputing the charge, or just contesting it, the steps below are the same.
Write My DisputeFree to start — describe what happened and get a dispute letter in minutes.
Get an itemized bill, not just a summary
Request a fully itemized statement from the provider's billing department — this shows the specific codes and charges, which is what you need to actually spot an error.
Compare it against your insurance Explanation of Benefits (EOB)
Check whether the provider billed you for something insurance already covered, or applied the wrong code (a common and very disputable error).
Contact the provider's billing department in writing
State the specific charge, why you believe it's wrong (referencing your EOB or your coverage terms), and what correction you're requesting.
If needed, involve your insurer's appeals process too
Most insurers have a formal appeal process for a denied or miscoded claim — this runs in parallel with disputing directly with the provider.
- •A billing code error is one of the most common and most fixable issues — providers routinely correct these once flagged with the specific code in question.
- •Ask for a prompt-pay or financial-hardship discount while a dispute is pending — many providers offer this and it's rarely advertised.
- •Keep every EOB and billing statement — medical billing disputes often take multiple rounds, and having a full paper trail makes each round faster.
Don't want to write it yourself?
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Write My DisputeA self-help document tool, not a law firm. We can't promise refunds or provide legal advice.