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Coverage

Medical billing

US medical billing errors, plan appeals, non-profit hospital obligations and medical debt collection

NationalUSRead off primary law

United States (federal)

Rule id
medical.us-billing-errors
Version
1.0.0
In force from
April 14, 2003
Last read against its sources
August 5, 2026
Countries bound
United States

In plain language

What this regime says.

Four routes that apply to almost every US medical bill and are almost never used: the HIPAA right to the itemised bill and its codes; the 180-day ERISA appeal with the right to the whole claim file and then a binding independent review; the obligations a non-profit hospital owes under IRC § 501(r), including a cap on what it may charge and a duty to refund overpayments; and the collections and credit-reporting rules that apply once the bill leaves the hospital.

Who is covered

Anyone with a medical bill in the United States. The ERISA limb needs an employer-sponsored plan; the § 501(r) limb needs a § 501(c)(3) hospital, which is roughly three in five community hospitals; the rest apply generally.

What you get

The itemised bill within 30 days at a cost-based fee; the claim file free of charge and an independent review that binds the plan; a bill recalculated to the amounts generally billed to insured patients, with a refund of anything paid above it; and a collector that must stop until it verifies the debt.

Where claims go wrong

  • Accepting a summary statement. Nothing on it can be disputed because nothing on it can be seen.
  • Reading the 30 or 60 days in a denial letter as the appeal deadline. For an employer plan the regulation gives at least 180 days.
  • Assuming you earn too much for hospital financial assistance. Eligibility thresholds are frequently well above the federal poverty level, and asking costs a form.
  • Not asking for a refund after a successful financial assistance application. The regulation requires one; hospitals do not volunteer it.
  • Disputing a collection by telephone. Only a written dispute inside the validation window triggers the duty to cease collection.
The official claim route

Authority

Every citation,
with its pinpoint.

A claim that cites “EU law” gets filed. A claim that cites Article 7(1)(c) gets answered. These are the exact coordinates this entry rests on.
  1. 45 CFR § 164.524HIPAA Privacy Rule, 45 CFR Part 164 Subpart EURL verified 2026-08-05§ 164.524(a)-(c) — individual right of access to protected health information in a designated record set; action within 30 days, one 30-day extension on written notice; reasonable cost-based fee only
  2. 29 CFR § 2560.503-1Employee Retirement Income Security Act claims procedure regulation, 29 CFR Part 2560URL verified 2026-08-05§ 2560.503-1(f)(2) — decision windows of 72 hours for urgent care, 15 days for pre-service and 30 days for post-service claims, each extendable by 15 days; § 2560.503-1(h)(3)(i) — at least 180 days to appeal an adverse benefit determination; § 2560.503-1(i)(2) — 72 hours, 30 days and 60 days respectively to decide an appeal; § 2560.503-1(h)(2)(iii) — reasonable access to, and copies of, all documents relevant to the claim, free of charge; § 2560.503-1(l) — deemed exhaustion where the plan does not follow the procedure
  3. 45 CFR § 147.136Public Health Service Act implementing regulations, 45 CFR Part 147URL verified 2026-08-05§ 147.136(b) — internal claims and appeals; § 147.136(d)(2) — request for external review within four months of receipt of the notice of adverse or final internal adverse benefit determination; § 147.136(d)(2)(v) — the independent review organisation's determination binds the plan
  4. 26 U.S.C. § 501(r)Internal Revenue CodeURL verified 2026-08-05§ 501(r)(4) — written financial assistance policy and emergency medical care policy; § 501(r)(5) — limitation on charges to FAP-eligible individuals to not more than the amounts generally billed to individuals with insurance covering such care, and prohibition on charging gross charges; § 501(r)(6) — no extraordinary collection actions before reasonable efforts to determine FAP eligibility
  5. 26 CFR § 1.501(r)-6Treasury Regulations, 26 CFR Part 1URL verified 2026-08-05§ 1.501(r)-6(b) — extraordinary collection actions, including reporting to a consumer reporting agency, selling the debt, deferring or denying care because of an unpaid earlier bill, and any action requiring a legal or judicial process; § 1.501(r)-6(c) — the notification period ending on the 120th day after the first post-discharge billing statement, the application period ending on the 240th day, the 30-day advance written notice before an extraordinary collection action, and the obligation to refund amounts paid in excess of what the individual is determined to owe
  6. 15 U.S.C. § 1692gFair Debt Collection Practices ActURL verified 2026-08-05§ 1692g(a) — validation notice within five days of the initial communication; § 1692g(b) — where the consumer disputes the debt in writing within the 30-day period, the collector must cease collection until it obtains verification and mails it to the consumer

Sources

Where a figure is indexed, converted or published by a regulator rather than fixed in the instrument, the provenance is recorded separately. Anything marked as a modelled estimate is exactly that — a model, not a statutory number.

What it imposes

Clocks, defences and the ladder.

A rule module builds these while it evaluates, because a limitation period depends on which forum is open to you. What follows is the structure this regime produces — deliberately with no dates and no figures, because those belong to your facts rather than to the law.

The clocks it starts

  • Provider's response to a HIPAA access request (30 days)45 CFR § 164.524(b)(2) requires the provider to act within 30 days of your request. One 30-day extension is allowed, but only on written notice that explains the reason and states the date by which it will act. The clock runs from your request, so date it and keep proof of sending. (Period: 30 days. We need the start date to work out your exact deadline.)45 CFR § 164.524 — § 164.524(a)-(c) — individual right of access to protected health information in a designated record set; action within 30 days, one 30-day extension on written notice; reasonable cost-based fee onlyResponse due
  • Non-profit hospital notification period (120 days)A § 501(c)(3) hospital may take no extraordinary collection action during the notification period, which ends on the 120th day after the FIRST POST-DISCHARGE BILLING STATEMENT (26 CFR § 1.501(r)-6(c)). We have run it from the date of service because the claim does not record when that statement was sent. This is a restriction on the hospital, not a deadline for you.26 CFR § 1.501(r)-6 — § 1.501(r)-6(b) — extraordinary collection actions, including reporting to a consumer reporting agency, selling the debt, deferring or denying care because of an unpaid earlier bill, and any action requiring a legal or judicial process; § 1.501(r)-6(c) — the notification period ending on the 120th day after the first post-discharge billing statement, the application period ending on the 240th day, the 30-day advance written notice before an extraordinary collection action, and the obligation to refund amounts paid in excess of what the individual is determined to oweNotice period
  • Financial assistance application period (240 days)A § 501(c)(3) hospital must accept and process a financial assistance application submitted within the application period, which ends on the 240th day after the first post-discharge billing statement (26 CFR § 1.501(r)-6(c)). Measured here from the date of service, so treat it as early. Note also that a hospital's own policy may accept applications for longer than the regulation requires, and many do — ask even if the 240 days appear to have run.26 CFR § 1.501(r)-6 — § 1.501(r)-6(b) — extraordinary collection actions, including reporting to a consumer reporting agency, selling the debt, deferring or denying care because of an unpaid earlier bill, and any action requiring a legal or judicial process; § 1.501(r)-6(c) — the notification period ending on the 120th day after the first post-discharge billing statement, the application period ending on the 240th day, the 30-day advance written notice before an extraordinary collection action, and the obligation to refund amounts paid in excess of what the individual is determined to oweFiling window
  • Fair Debt Collection Practices Act action (1 year)15 U.S.C. § 1692k(d) requires an action against a debt collector to be brought within one year of the violation — of the offending call or letter, not of the medical care. We have run it from the date of service for want of anything better, so it is indicative only. Missing it ends the damages claim against the collector and nothing else: the dispute about whether the bill is owed is unaffected.15 U.S.C. § 1692k — § 1692k(a) — actual damages, additional statutory damages of up to $1,000, and costs and a reasonable attorney's fee; § 1692k(d) — an action must be brought within one year of the violationLimitation period

What it entitles you to, beyond money

  • The fully itemised bill, within 30 daysRequested under 45 CFR § 164.524, with a cost-based fee limit and a 30-day clock. Put the request in writing and date it — the clock is only useful if you can show when it started.§ 164.524(a)-(c) — individual right of access to protected health information in a designated record set; action within 30 days, one 30-day extension on written notice; reasonable cost-based fee only
  • The financial assistance policy, its plain-language summary and the AGB percentageAll three must exist and be free for a § 501(c)(3) hospital, and the AGB percentage must be stated in the policy. Asking for them by their regulatory names tends to reach a different desk from asking about "charity care".§ 1.501(r)-4(b) — required contents of the financial assistance policy: eligibility criteria, the basis for calculating amounts charged, how to apply, and the measures taken to publicise it widely in the community served
  • A refund of anything paid above what you are determined to oweWhere a financial assistance application made in the 240-day application period succeeds, 26 CFR § 1.501(r)-6(c)(7) requires the hospital to refund the excess already paid. Ask for it expressly; hospitals cancel balances readily and refund reluctantly.§ 1.501(r)-6(b) — extraordinary collection actions, including reporting to a consumer reporting agency, selling the debt, deferring or denying care because of an unpaid earlier bill, and any action requiring a legal or judicial process; § 1.501(r)-6(c) — the notification period ending on the 120th day after the first post-discharge billing statement, the application period ending on the 240th day, the 30-day advance written notice before an extraordinary collection action, and the obligation to refund amounts paid in excess of what the individual is determined to owe
  • No extraordinary collection action until eligibility has been consideredReporting the debt, selling it, suing on it or refusing you future care because of it are all extraordinary collection actions under 26 CFR § 1.501(r)-6(b), and none may be taken before reasonable efforts to determine your eligibility, nor during the 120-day notification period, nor without 30 days' written notice.§ 1.501(r)-6(b) — extraordinary collection actions, including reporting to a consumer reporting agency, selling the debt, deferring or denying care because of an unpaid earlier bill, and any action requiring a legal or judicial process; § 1.501(r)-6(c) — the notification period ending on the 120th day after the first post-discharge billing statement, the application period ending on the 240th day, the 30-day advance written notice before an extraordinary collection action, and the obligation to refund amounts paid in excess of what the individual is determined to owe
  • A written dispute stops a collector until it verifies the debt15 U.S.C. § 1692g(b). Send it inside the 30 days from the validation notice, in writing, and keep proof. Collection must cease until verification is obtained and mailed to you.§ 1692g(a) — validation notice within five days of the initial communication; § 1692g(b) — where the consumer disputes the debt in writing within the 30-day period, the collector must cease collection until it obtains verification and mails it to the consumer
  • Reinvestigation of an inaccurate medical tradeline15 U.S.C. § 1681i requires the credit reporting agency to reinvestigate disputed information, generally within 30 days, and § 1681s-2(b) puts a matching duty on whoever furnished it. Dispute with all three bureaus, and with the furnisher, in writing.§ 1681i(a) — reinvestigation of disputed information by the consumer reporting agency, generally within 30 days; § 1681s-2(b) — duties of the furnisher on notice of a dispute

What the other side will say

Each of these is a refusal this regime lets a counterparty attempt, paired with the answer to it. Reading them before you write is worth more than any amount of polish on the letter itself.

"Here is your balance" — a single number with no detail

high likelihood

The billing office sends a statement showing one total, or a handful of department-level lines, and treats a request for the underlying codes as an unusual demand.

What answers it

You cannot dispute a charge you cannot see, and the codes are the dispute. Ask in writing for the fully itemised statement with every CPT/HCPCS code, revenue code, modifier, unit count and date of service, plus the corresponding explanation of benefits. Billing records sit inside the HIPAA "designated record set" (45 CFR § 164.501), so the right of access in 45 CFR § 164.524 reaches them and the provider must act within 30 days.

45 CFR § 164.501 — § 164.501, definition of "designated record set" — "the medical records and billing records about individuals maintained by or for a covered health care provider"

"You already paid it, so the account is closed"

high likelihood

The provider treats payment as agreement to the charge and refuses to revisit an amount that has been settled.

What answers it

Paying an amount that was never owed does not make it owed. Where a statutory cap applies — the in-network cost-sharing amount under the No Surprises Act, the Medicare limiting charge, the amounts generally billed limit for a non-profit hospital — the money above the cap was collected without a right to it and is repayable. Say in the letter that you are seeking a refund of a specific overcharge, not renegotiating a settled bill.

"Pay now or this goes to collections and onto your credit file"

high likelihood

The provider or its agency applies time pressure with a threat to report the debt or sue, while the amount is still genuinely in dispute.

What answers it

Put the dispute in writing and the threat becomes a liability rather than a lever. A debt collector that continues to collect after a written dispute inside the 30-day validation window is in breach of 15 U.S.C. § 1692g(b); a non-profit hospital that takes an extraordinary collection action before making reasonable efforts to determine financial-assistance eligibility is in breach of 26 CFR § 1.501(r)-6; and the three nationwide credit bureaus do not accept unpaid medical collections until a waiting period has run. Ask for written validation and say the account is disputed.

"There is a per-page charge and a search fee for your records"

high likelihood

The provider, or the release-of-information company it uses, quotes a fee schedule that makes the itemised bill expensive enough to abandon.

What answers it

45 CFR § 164.524(c)(4) limits the fee for an individual exercising the right of access to a reasonable, cost-based fee: labour for copying, supplies, postage, and preparing an explanation or summary if you agreed to one. Costs of searching for and retrieving the record are expressly excluded. Say that you are exercising the individual right of access under § 164.524 — not making a third-party records request — and ask for the fee to be recalculated on that basis.

45 CFR § 164.524 — § 164.524(a)-(c) — individual right of access to protected health information in a designated record set; action within 30 days, one 30-day extension on written notice; reasonable cost-based fee only

"Your appeal window closed thirty days after the denial"

high likelihood

The plan's denial letter states a short deadline, and the service representative repeats it.

What answers it

For a group health plan, 29 CFR § 2560.503-1(h)(3)(i) requires at least 180 days from your receipt of the adverse benefit determination to appeal. A shorter period stated in a denial letter does not shorten the regulation, and a plan that does not follow the regulation loses the exhaustion defence altogether under § 2560.503-1(l).

29 CFR § 2560.503-1 — § 2560.503-1(f)(2) — decision windows of 72 hours for urgent care, 15 days for pre-service and 30 days for post-service claims, each extendable by 15 days; § 2560.503-1(h)(3)(i) — at least 180 days to appeal an adverse benefit determination; § 2560.503-1(i)(2) — 72 hours, 30 days and 60 days respectively to decide an appeal; § 2560.503-1(h)(2)(iii) — reasonable access to, and copies of, all documents relevant to the claim, free of charge; § 2560.503-1(l) — deemed exhaustion where the plan does not follow the procedure

"You would not qualify for financial assistance"

high likelihood

The billing office discourages an application on the phone, usually by referring to income without asking what it is.

What answers it

Eligibility is set by the hospital's written policy, which 26 CFR § 1.501(r)-4(b) requires it to have, to publish and to apply. Ask for the policy and apply in writing. A verbal discouragement is not a determination, and the obligation to accept and process an application during the 240-day application period does not depend on the billing office's view of your prospects.

26 CFR § 1.501(r)-4 — § 1.501(r)-4(b) — required contents of the financial assistance policy: eligibility criteria, the basis for calculating amounts charged, how to apply, and the measures taken to publicise it widely in the community served

"That is our standard rate"

high likelihood

The hospital treats its chargemaster price as the answer to why an uninsured patient is being billed several times what an insurer pays for the same code.

What answers it

For a § 501(c)(3) hospital that is not an answer, it is the violation. 26 U.S.C. § 501(r)(5) prohibits charging gross charges to a FAP-eligible individual and caps the charge at the amounts generally billed to insured patients. Ask for the AGB percentage and the method — look-back or prospective — from the financial assistance policy, and for the bill to be recalculated on it.

26 CFR § 1.501(r)-5 — § 1.501(r)-5(b) — the limitation on charges; § 1.501(r)-5(b)(3) — the look-back method for computing amounts generally billed, using Medicare fee-for-service alone, Medicare together with private health insurers, or Medicaid; § 1.501(r)-5(c) — the prospective Medicare or Medicaid method

"We have verified the debt" — with a one-line statement

medium likelihood

A collector responds to a written dispute with a printout of the balance and resumes collecting.

What answers it

Verification under 15 U.S.C. § 1692g(b) means obtaining verification of the debt from the creditor and mailing it to you. A balance printed from the collector's own system verifies nothing. Ask for the itemised statement from the provider, the assignment or purchase agreement showing the collector's right to collect, and the identity of the original creditor. Until that arrives, collection must not resume.

15 U.S.C. § 1692g — § 1692g(a) — validation notice within five days of the initial communication; § 1692g(b) — where the consumer disputes the debt in writing within the 30-day period, the collector must cease collection until it obtains verification and mails it to the consumer

Where to take it next

  1. Written request for the itemised bill and the financial assistance policyOne letter, two requests. Ask for the fully itemised statement with all codes under 45 CFR § 164.524, and for the financial assistance policy, its plain-language summary and the amounts-generally-billed percentage. Say the account is disputed pending receipt. Date it and keep proof of sending — every clock below runs from a date you have to be able to prove.Claim directtypically 30 days
  2. Apply for financial assistance and ask for the bill to be recalculatedSubmit the application inside the 240-day application period. If you are eligible, the amounts generally billed cap applies and anything already paid above what you are determined to owe must be refunded. Ask for the refund in the application itself.Claim directtypically 45 days
  3. Complaint to the HHS Office for Civil RightsTwo things go here. A provider that refuses or delays access to your billing records breaches 45 CFR § 164.524, and OCR runs an enforcement initiative specifically on right-of-access failures. Discrimination or a failure of language access under § 1557 goes to the same office.Regulatortypically 90 daysofficial page
  4. Complaint to the CFPB about the collector or the credit reportFree, quick, and it requires a substantive response from the collector or the bureau, usually within 15 days. It is the fastest way to get a disputed medical tradeline actually looked at by a human.Regulatortypically 60 daysofficial page
  5. State attorney general, and the IRS for a § 501(r) failureState attorneys general have become active on hospital billing and collection practices, and several have brought cases about exactly the § 501(r) failures described here. A hospital that ignores its own financial assistance policy can also be reported to the IRS, which enforces § 501(r) through the exemption itself — a fact worth mentioning in the letter.Regulatortypically 120 days
  6. Small-claims action, or defend the collection suitIf the hospital or its assignee sues, the itemised bill, the financial assistance policy and the amounts-generally-billed calculation are all defences to the amount claimed. Where you are the one suing — for a refund, or for FDCPA damages with their fee-shifting — small claims handles it without a lawyer for a filing fee of roughly USD 30-100.Small claimstypically 120 days

Documents

What this regime can produce.

Every one of these is a document you send yourself, in your own name. Duesday never writes to anybody on your behalf and is never anyone’s agent.

The same claim type elsewhere

Other rights in the same countries

Does this one reach your facts?

The engine runs every regime that could apply at once and reconciles them, rather than making you guess which page to read.

Not a law firm. Not legal advice. You send it yourself. This page describes a law; it is not advice about your situation and no outcome is promised.