What to do about a surprise medical bill

Call the billing department and request a fully itemized bill with procedure codes — the CPT and HCPCS codes for services and ICD codes for diagnoses. A summary bill showing 'hospital services: $8,400' is not something you can check, and providers must supply the detail on request.

Compare it line by line against the Explanation of Benefits from your insurer. The EOB is not a bill; it shows what was billed, what the insurer's negotiated rate was, what it paid, and what it says you owe. If the provider's bill exceeds the EOB's patient responsibility figure, something is wrong.

Look for the standard errors: duplicate charges, services on dates you were not there, a room billed for the discharge day, quantity errors — one pill billed as ten — and 'upcoding' to a more expensive version of the service you received.

Confirm the claim was actually submitted to your insurer and processed. A large share of surprise bills are simply claims that were never filed, filed with a wrong policy number, or denied for a fixable administrative reason.

If the claim was denied, get the reason in writing. Denials for coding errors, missing prior authorization or 'not medically necessary' are routinely overturned on appeal, and you have a legal right to both an internal appeal and an external review by an independent body.

Since 2022, federal law bans 'balance billing' — the practice of an out-of-network provider billing you for the gap between their charge and what your insurer paid — in the situations where patients had no realistic choice.

It covers emergency services at any facility, including air ambulances, regardless of network status; and non-emergency care by out-of-network providers at an in-network facility, which is the classic case of an out-of-network anesthesiologist, radiologist or assistant surgeon at a hospital you chose precisely because it was in-network.

In those situations you can only be charged your normal in-network cost sharing. The provider and insurer settle the rest between themselves through an independent dispute resolution process you are not party to.

The notable exclusion is ground ambulances, which remain largely unprotected — a significant gap that continues to generate large bills.

You can be asked to waive the protection for some scheduled non-emergency out-of-network care, via a written consent form given in advance. You are never required to sign it, and signing it is rarely in your interest.

If you believe you have been balance billed illegally, complain to the federal No Surprises Help Desk and to your state insurance commissioner. This is enforced, and providers respond to it.

Ask for the financial assistance policy — 'charity care' — by name. Nonprofit hospitals, which are the majority of US hospitals, must maintain and publicize one as a condition of tax exemption, and many discount or eliminate bills for households well above the poverty line. Eligibility thresholds are often far more generous than patients assume, and hospitals are not required to volunteer the information.

Ask for the cash or self-pay price. Uninsured patients are billed at list prices ('chargemaster' rates) that no insurer pays, and the discount for asking is often 30 to 60 percent. Hospitals must also publish machine-readable standard charges under federal transparency rules.

For scheduled care while uninsured, you are entitled to a good faith estimate in advance. If the final bill exceeds it by $400 or more, you can use the federal patient-provider dispute resolution process.

Negotiate a payment plan — interest-free plans are common and standard. Do not put medical debt on a credit card or a medical credit card with deferred interest, which converts a flexible, low-consequence debt into an expensive one.

Medical debt is treated differently from other debt: the major credit bureaus no longer report paid medical collections, medical collections under $500, or unpaid medical collections less than a year old, and several states restrict it further. Debt collectors must still follow the Fair Debt Collection Practices Act, and you can demand written validation of any debt claimed.

Nonprofit financial counselors and hospital patient advocates exist for this, and using them is free.

If your insurer denies a claim, appeal. You have a right to an internal appeal and then to an external review by an independent reviewer whose decision binds the insurer. Deadlines are typically 180 days from the denial. Written appeals citing the plan's own language and a supporting letter from your doctor succeed far more often than phone calls.

Keep everything: bills, EOBs, names, dates, reference numbers, and notes of every call. Ask for anything important in writing.

Prevention, for scheduled care: confirm in writing that the facility and every provider involved is in network — the surgeon, the anesthesiologist, the pathologist, the assistant. Ask for a pre-service cost estimate and check whether prior authorization is required, since its absence is a leading cause of denial.

Use your insurer's cost estimator tool and confirm the specific procedure code. 'Covered' and 'covered at what cost' are different questions.

For non-emergencies, urgent care and telehealth are dramatically cheaper than an emergency room. For genuine emergencies, go to the ER — the No Surprises Act was written precisely so cost fear does not delay emergency care.