How a claim from a hospital outside the United States actually gets paid
A foreign hospital can hold a US provider identifier, and some do. The claims plumbing still does not route to it: the standard form assumes a domestic address and the surprise-billing statute never contemplates the transaction.
Published November 8, 2026
8 min read
Information provided is for general reference only and does not constitute medical advice. Consult a qualified healthcare professional before making medical decisions.
A foreign medical claim passes through 6 layers of US claims plumbing, and the first is not the obstacle: hospitals abroad can hold a national provider identifier, as 3 we checked do. What stops the claim is further down, where the federal claim-form manual says foreign claims "will not include a valid ZIP code".
Sylk Health. Current as of October 2026.
A plan that decides to cover a procedure at a hospital abroad has solved nothing yet. Somebody has to turn an invoice from Bangkok or Madrid into something an administrator can adjudicate. This post sets out the pieces and where each one stops. It describes mechanics and gives no advice.
The six layers at a glance
The table below lists each layer a foreign claim has to pass through, and what the federal record shows about it.
Layer
Does it travel abroad?
What the record shows
Provider identifier
Yes
Registry holds active hospital records abroad, including Israel (2) and India
Diagnosis coding
Yes
A US clinical modification (ICD-10-CM) of the WHO's 10th revision
Procedure coding
No, without a licence
Proprietary; we are not a licensee and print none of it
Claim form
Not cleanly
Federal manual: foreign claims "will not include a valid ZIP code"
Surprise-billing protection
Silent
No Surprises Act definitions never mention care abroad
Currency
Only one rule found
Official exchange rate on the date of discharge, 42 C.F.R. § 413.74(d)
Two layers travel, one is licensed, and three were written for a domestic transaction.
Can a hospital outside the United States get a provider identifier?
It can, and we expected to report the opposite. The regulation permits a health care provider that is not a covered entity to obtain an identifier voluntarily, and the definition attaches no condition about where the provider is located. The application form (opens in new tab) carries fields for "Business Country Name (if outside U.S.)" and a "ZIP or Foreign Postal Code".
The registry (opens in new tab) bears that out. Querying it returns active organisational records, with the general acute care hospital taxonomy, for two hospitals in Israel and a teaching hospital in India, among others. So the identity layer is not the obstacle. A foreign hospital can be named on a claim in the way the form expects.
Where does the claim form stop?
The claim form stops at the address and at who files. The manual governing the professional claim form (opens in new tab) addresses foreign claims directly, and its sentence is the mechanical heart of this post: "For foreign claims, only the enrollee can file for Part B benefits rendered outside of the United States. These claims will not include a valid ZIP code."
Two constraints sit in that one sentence. The submission path runs through the patient rather than the provider, which inverts the assignment model everything downstream is built around. The form's geography field also cannot be populated, because a required element of a domestic address does not exist abroad. That is a rule for a federal programme rather than for a private plan, and a self-funded plan is not bound by it. It is quoted here because it is the only place the claims apparatus says out loud what it assumes.
Coding, and the part we are not licensed to print
A plan adjudicates against codes. The diagnosis standard is a United States clinical modification of an international classification maintained by the World Health Organization, which is why a diagnosis recorded in Seoul or Chennai can be expressed in terms an American administrator recognises. That layer travels.
The procedure side does not travel in the same way, and we are not in a position to demonstrate it, because the code set is proprietary and we are not a licensee. We set out the position in a comment to the agency in September 2026 rather than reproducing anything from it. Nothing in this post carries a code or a descriptor from it.
Does the No Surprises Act reach a claim from abroad?
It does not, and the honest finding is that it is silent rather than exclusionary. Its definitions (opens in new tab) are built on state licensure and on the Social Security Act. An independent freestanding emergency department is one "licensed separately from a hospital under applicable State law". A nonparticipating emergency facility is defined by the absence of "a contractual relationship directly or indirectly with the plan or issuer".
The words for foreign, abroad and outside the United States do not appear in the relevant section. The Act does not exclude care obtained abroad; it was written without that case in mind, and its machinery has nothing to grip. A patient treated at a hospital in another country is simply outside its scope.
The one place federal payment does reach a foreign hospital
Medicare pays foreign hospitals in narrow circumstances, and the conditions show how tightly drawn such an exception has to be. Payment is available "for emergency and nonemergency inpatient hospital services furnished by a foreign hospital", but each limb is conditioned:
Emergency: the beneficiary must have been "In the United States" or in Canada travelling between Alaska and another state, and the foreign hospital must have been "closer to, or more accessible from, the site of the emergency than the nearest United States hospital equipped to deal with" the condition.
Non-emergency: the beneficiary must be "a resident of the United States" and the foreign hospital closer to their residence.
Currency: "Payment to the hospital will be subject to the official exchange rate on the date the patient is discharged," under 42 C.F.R. § 413.74(d) (opens in new tab).
Neither limb contemplates a patient who travels in order to be treated. They describe someone who was already there. The exchange-rate sentence is the only worked answer to the conversion question we found in the regulations, and a plan that does not choose its own conversion date deliberately will find its administrator has chosen for it.
Frequently asked questions
What does the standard claim form require about the billing provider?
It requires an address and an identifier. Chapter 26 of the claims processing manual instructs: "Item 33 - Enter the provider of service/supplier's billing name, address, ZIP code, and telephone number. This is a required field." The next item reads: "Item 33a - Enter the NPI of the billing provider or group. This is a required field." A foreign hospital can supply the second; it cannot supply a ZIP code.
When Medicare does pay a foreign hospital, how much does it pay?
It pays the hospital's customary charges, less the patient's share. Under 42 C.F.R. § 413.74(b), for admissions on or after 1 January 1980, payment "will be equal to 100 percent of the hospital's customary charges" for covered services, subject to the deductible and coinsurance. The hospital must support its charges "by submitting an itemized bill with each claim it files."
Who maintains the diagnosis codes a US plan uses?
A federal agency, with the World Health Organization's authority. The CDC's National Center for Health Statistics (opens in new tab) states that it "is responsible for the clinical modification of ICD-10 for use in the United States," and that "The World Health Organization (WHO), which owns and publishes ICD-10, authorized NCHS to develop ICD-10-CM." That shared root is why a diagnosis recorded abroad under ICD-10 can be read by a US administrator.
What a foreign medical claim adds up to
The identifier exists and the diagnosis coding travels. The procedure coding is licensed and we cannot cross that bridge. The claim form assumes a domestic address and, for the federal programme at least, pushes the filing onto the patient. The statute protecting patients from surprise bills has nothing to say about a foreign medical claim, and the only currency rule in the regulations belongs to a programme whose foreign exceptions describe someone who was already abroad.
None of that is a reason to do anything or not to. It is the list of decisions a plan has to make for itself, each of which is ordinarily made by default; our post on what the plan documents have to say covers the first of them. We supply a price for a procedure and nothing else, and anything a plan concludes from this belongs with its counsel and its administrator.
This article is general information about federal claims rules. It is not legal, tax or financial advice; consult counsel and your plan administrator.
Disclosure: Sylk Health supplies procedure-price data and earns a commission from providers on bookings completed through its platform. It would benefit from broader use of externally benchmarked prices for medical procedures, and from any gap between those prices and prices in the United States.
National Plan and Provider Enumeration System, public registry (opens in new tab), and Form CMS-10114 (opens in new tab), the national provider identifier application. 45 C.F.R. §§ 160.103 and 162.410(c), on voluntary enumeration of providers who are not covered entities.
42 C.F.R. §§ 424.121 to 424.126, payment for services furnished by foreign hospitals, and 42 C.F.R. § 413.74 (opens in new tab), including the exchange-rate provision at (d).
Centers for Disease Control and Prevention, National Center for Health Statistics, ICD-10-CM (opens in new tab).
Sylk Health, Comment to the Centers for Medicare and Medicaid Services on procedure coding and licensing, 14 September 2026.
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