BillSherpa · Emergency & Panic Guides · Updated 2026

I was billed for a procedure I never had — how to prove it and get a refund

Being billed for something you never received is one of the most common medical billing errors. It's also one of the easiest to prove once you know what documentation to request.

How this happens

• Template billing: Pre-built billing templates automatically include common procedures for a visit type — if not edited, charges appear for services that were ordered but not performed.
• Miscommunication between clinical and billing staff: A test ordered then cancelled but billing was never notified.
• Supplies opened but not used: Especially in surgical settings.
• Duplicate entries: Same service billed twice when multiple systems interact.

How to prove you didn't receive the service

1. Request your complete medical records for the visit — physician notes, nursing notes, operative report, anesthesia records, order records. You have the right to receive them within 30 days under HIPAA.
2. Request the itemized bill with CPT codes simultaneously.
3. Compare each billed item to the medical records. For every procedure on the bill, look for documentation confirming it occurred. No documentation = your evidence.
4. Note discrepancies in writing — CPT code, description, charge, "no documentation found in medical records."
5. Send a formal dispute letter by certified mail to billing and to the hospital's compliance department. State what you want: removal of the charge and a refund if you've already paid.

If you've already paid

Hospitals are legally required to issue refunds for overpayments. State this clearly in your dispute letter and include your payment date and amount. If the hospital doesn't issue a refund within 30 days, escalate to your state insurance commissioner.