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What is the patient-provider dispute resolution process, and what does the provider do?

The patient-provider dispute resolution process lets an uninsured or self-pay patient challenge a bill that is at least $400 above a provider's Good Faith Estimate. For the provider, it is a records exercise with a short clock: hold the account, build the file, answer within 10 business days, and decide whether settling is cheaper than waiting for a decision.

Written by Salman Saeed, CEO and Co-Founder · Reviewed by a Certified Medical Coder · Published October 26, 2026

Billing team assembling an estimate, bill and clinical notes for a patient dispute file — Build the file before the selection notice arrives, because the 10-business-day clock is short.

In short: when a dispute notice arrives, stop collections the same day, pull the estimate and the bill, and prepare clinical support for every line above the estimate. You have 10 business days from the selection notice to submit, and you can settle at any point before the decision.

What is the patient-provider dispute resolution process?

It is the federal process in 45 CFR 149.620 that lets an uninsured or self-pay patient dispute a bill when total billed charges are at least $400 more than the expected charges on the estimate for that provider or facility. The patient files with HHS, HHS assigns an outside entity, and the entity sets the amount owed.

This post is the provider's working playbook. The rules, fee table and decision matrix are on our patient-provider dispute resolution reference page, and the estimate itself is covered in how to write a Good Faith Estimate.

Does the bill actually qualify? Run the $400 test per provider

The test is applied provider by provider, not across the whole episode. Under 45 CFR 149.620(b)(1), an item or service is eligible when the total billed charges by a particular convening provider, facility, co-provider or co-facility are substantially in excess of that same provider's total expected charges on the estimate.

Made-up figures. The two providers are tested separately.
Provider on the estimate	Expected charges	Total billed	Difference	Qualifies?
Surgical facility (example)	$2,400	$2,800	$400	Yes, because the difference is at least $400
Anesthesia group (example)	$900	$1,250	$350	No

If a co-provider was replaced, compare the replacement's bill with the expected charges for the original co-provider, unless the replacement issued the patient a new estimate. That rule is 149.620(b)(2).

What do you do on the day the notice arrives?

Place an account hold

Under 45 CFR 149.620(c)(5), you must not move the bill into collection or threaten to, and you must stop collection efforts if it is already there. Late fees stop accruing on the unpaid amount until the process ends. Tell the collection vendor in writing the same day.

Stop any retaliation risk

Under 149.620(c)(6), you must not take or threaten retributive action against the patient for using the process. Flag the account so no one changes the patient's scheduling or access because of the dispute.

Record the dates

Write down the date of the initial bill, the date the SDR entity's receipt notice arrived and the date it listed as the date of initiation. The patient has 120 calendar days from receiving the initial bill, and the date of initiation is the date HHS receives the notice.

Wait for the selection notice

You send nothing until the entity notifies you the item is eligible. If the patient's notice is incomplete, the patient gets 21 calendar days to add information, which can extend to 35 calendar days.

Start the file anyway

The 10-business-day clock starts on receipt of the selection notice, so assemble the estimate, bill and support before it lands.

What goes in the 10-business-day submission?

Three items, per 45 CFR 149.620(f)(2)(i). First, a readable copy of the estimate you gave the patient. Second, a readable copy of the billed charges the patient received. Third, if available, documentation showing the difference reflects a medically necessary item or service and was based on unforeseen circumstances that the provider did not reasonably anticipate when it issued the estimate.

Treat the third item as the one that decides the case. For each line above the estimate, write two sentences in the chart summary: why the care was medically necessary, and what changed after the estimate was issued. Vague phrases such as complications arose do not describe an unforeseen circumstance. Name the finding, the date and the clinician.

Estimate as the patient received it, with date and delivery method.
Bill with its date, showing each line against the matching estimate line.
Clinical note or addendum for each line above the estimate, citing the new finding.
Any new estimate issued after a scope change, and the date it went out.
Account hold date and a note of the collection actions you stopped.

What do the dates look like on a real case?

Example with computed dates (made-up case)

The patient receives the initial bill on Monday, January 11, 2027. The 120-calendar-day window to file ends Tuesday, May 11, 2027. The patient files in February, and the selection notice reaches you on Monday, February 1, 2027. Ten business days after receipt is Tuesday, February 16, 2027, because Monday, February 15 is a federal holiday. If you submit on Friday, February 12, the entity must decide within 30 business days of receiving your documents, which is no later than Monday, March 29, 2027.

What outcome should you expect, in numbers?

The entity decides item by item. If you send no credible information, a billed charge above the estimate drops back to the expected charge. If you send credible information, the entity sets the lesser of the billed charge or the median payment by plans for the same or similar service in the area, but never below the estimate.

Example (made-up numbers)

The facility estimate was $2,400 and the bill is $2,800. With no credible support, the entity sets $2,400, subtracts the patient's $25 fee, and the patient owes $2,375. With documented support and an independent database median of $2,600, the entity sets $2,600, and the patient owes $2,575 after the $25 is subtracted. If the entity upholds the full $2,800, the fee is not subtracted, and the patient owes $2,800.

When does settling beat waiting?

Settle when the clinical support is thin. Before the decision, you and the patient can agree on any amount, including financial assistance or a lower figure. Notify the entity within 3 business days of the agreement, state the amount and date, show that both sides agreed, and show a reduction of at least half the administrative fee. At the current $25 fee, that reduction is $12.50 (45 CFR 149.620(f)(1) and (g)(1)(v)).

Do not read a partial payment as a settlement. Under 149.620(f)(1)(ii), a patient who pays all or part of the bill before the determination has not agreed to that or any other amount.

How Nucleus Align handles patient-provider disputes

We screen each dispute for eligibility, track the 120-day and 10-business-day dates, hold collections, and assemble the estimate, bill and clinical support the rule asks for. The work sits inside our patient billing service and supports internal medicine billing practices that run self-pay accounts. To review your open disputes, book a call.

Sources

We check every rule, code and deadline against the official source. See our editorial policy.

Written by Salman Saeed, CEO and Co-Founder

Reviewed by a Certified Medical Coder. Our editorial policy explains how every article is checked.

FAQ

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Straight answers from the team that does the work.

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01What is the patient-provider dispute resolution process?

It is the federal process under 45 CFR 149.620 that lets an uninsured or self-pay patient dispute a bill at least $400 above the Good Faith Estimate. The patient files with HHS, HHS assigns a Selected Dispute Resolution entity, and that entity sets the amount owed.

02What must I do the day a dispute is filed?

Stop collections and late fees. Under 45 CFR 149.620(c)(5), you must not move the bill into collection or threaten to, and you must cease efforts if it is already there. You also cannot retaliate against the patient. Then start assembling the estimate, bill and support.

03How long do I have to respond?

You have 10 business days from receiving the selection notice to submit the estimate, the billed charges and any documentation that the extra charge was medically necessary and unforeseen. The entity then has 30 business days after receiving your documents to decide.

04Who pays the patient's fee?

The patient pays an administrative fee when filing, which CMS currently lists as $25. If the entity sets payment below the billed charge, the fee is subtracted from what the patient owes. If it sets payment at the billed charge, the fee is not subtracted.

05Can I settle before the decision?

Yes. You can agree on any amount before the decision, then notify the entity within 3 business days with the amount, the date and proof you reduced the bill by at least half the administrative fee, which is $12.50 at the current amount.