How to Dispute a Medical Bill With AI

Start by separating the documents. A bill comes from the provider (hospital, clinic or lab) and says what they want you to pay. An EOB comes from your insurer. It shows what was billed, the allowed amount under your plan, what the insurer paid and what you owe. An EOB isn't a bill, but the two should agree. If the provider asks for more than the EOB lists as your share, ask why. Next, ask for an itemized bill. Summary statements often show only totals by category. An itemized bill lists each service with codes: CPT or HCPCS codes describe procedures, supplies and drugs; and ICD-10 codes describe diagnoses. AI can translate the codes into plain language and point out patterns worth checking: the same code repeated on one date; a charge dated after you were discharged; a visit code for a higher level of care than you seem to have received (sometimes called upcoding); and items billed separately that are normally billed together as one package (unbundling). These are leads, not proof. A repeated code can be legitimate, so ask the billing office to explain it. If you're in the U.S., know these protections. The No Surprises Act, in effect since January 2022, limits many surprise out-of-network bills for emergency care and for certain care at in-network facilities. It also gives uninsured and self-pay patients the right to a good faith estimate before care. Nonprofit hospitals must have financial assistance policies, and asking about them can greatly reduce the bill if you qualify. You can generally appeal a denied claim to your insurer, and many plans allow an independent external review after that. A common mistake is thinking AI can confirm a bill is wrong. It can't see your medical records. What it can do is help you ask sharper questions and write clear, organized letters.