Facility vs professional billing: two claims, one visit

What is the difference between facility and professional billing?

Facility billing is the hospital's claim for the building, nursing staff, equipment and supplies used in a visit. Professional billing is the physician's or other practitioner's claim for their own work. The facility sends an institutional claim on the UB-04 (electronic format 837I), and the practitioner sends a professional claim on the CMS-1500 (electronic format 837P).

CMS draws the line in its own form guidance. Its Medicare billing booklet for the CMS-1500 says the form is the standard paper claim that non-institutional providers or suppliers use to bill Medicare Administrative Contractors (MACs). Its booklet for the CMS-1450, also called the UB-04, says the form is the standard paper claim used by institutional providers. Claims Processing Manual Chapter 24 names the two electronic versions as the ASC X12 837 professional (005010X222A1) and institutional (005010X223A2) transactions.

The table puts the two claims side by side. Every row is a place where the same visit looks different depending on which claim you are reading.

Two terms in that table need a definition. A revenue code is a four-digit entry in FL 42 that names the department or service line of a charge. A bill type is the four-character code in FL 4 that says the type of facility, the type of care and whether the bill is first, interim or final. The CMS-1500 vs UB-04 rule page goes through both forms field by field. This guide is about what happens when both forms describe one visit.

Why does one visit produce two claims?

One visit produces two claims because two different parties delivered the care and each one is enrolled, paid and audited separately. The hospital supplied the department, and the physician supplied the judgment. Medicare pays them under different systems, so each submits its own claim.

Claims Processing Manual Chapter 25 states the rule for hospitals that bill gross charges: the A/B MAC adjusts interim payment rates to exclude payment for hospital-based physician services, and the physician component must be billed to the Part B MAC to obtain payment. That is the two-claim structure in one sentence.

There is one narrow exception to know about. Chapter 25 describes a combined claim, one that includes both facility and professional fee components, for situations such as a Medicaid clinic bill or a Critical Access Hospital claim. In that case the claim reports the rendering provider in form locators 78 and 79 with qualifier 82. Revenue codes 0981 (professional fees, emergency room) and its siblings carry those professional fees on the hospital's claim under the CAH optional method. Outside those cases, assume two claims.

Sending a visit on the wrong form does not produce a denial you can appeal. Chapter 1 of the Claims Processing Manual says a submission that does not conform to the required claim format is returned to the provider, is never reflected on a remittance advice, and is not considered a claim under Medicare regulation. Commercial payers use their own reject codes, but the commonly seen X12 reason is CARC 16, claim or service lacks information or has submission or billing errors.

The filing clock runs on both claims. Under 42 CFR 424.44, Medicare claims must be filed no later than the close of the period ending 1 calendar year after the date of service. For institutional claims that carry span dates, Chapter 1 says the Through date on the claim starts the clock, while the From date is used otherwise. Commercial limits are in the contract, so a facility and a physician group billing the same payer can have different deadlines.

How is one ER visit billed on both claims?

A hospital emergency visit produces a facility claim that carries revenue code 0450 and an ED visit code, and a physician claim that carries the same visit code family with place of service 23. The levels on the two claims are set by different rules and often differ.

The physician level and the hospital level can differ without anything being wrong. In the CY 2008 OPPS final rule CMS said hospital guidelines should be based on hospital facility resources and should not be based on physician resources. The 99285 code page explains the physician side of that level.

Check the pair before release. A mismatch in service date, a diagnosis on one claim that the other does not support, or a procedure on the facility claim that the physician never documented are the three problems a payer or auditor looks for first.

Which boxes on each form should I check first?

Check the diagnosis, the service lines, the dates and the billing NPI first, because those are the fields where the facility and professional claims are compared. On the UB-04 they are form locators (FLs) 4, 42, 44, 45, 46, 47, 56 and 67. On the CMS-1500 they are items 21, 24A, 24B, 24D, 24E, 24G, 24J, 32 and 33a.

Claims Processing Manual Chapter 25 sets the Medicare rules for each UB-04 form locator. These are the ones that decide whether an ED facility claim pays.

Chapter 25 adds a rule in its FL 47 instructions: where a hospital uses gross billing, the A/B MAC adjusts interim payment rates to exclude hospital-based physician services, and the physician component must be billed to the Part B MAC to obtain payment.

Chapter 26 does the same for the CMS-1500. Each of the six service lines in item 24 has a shaded top half for supplemental information such as an NDC, and the lower half holds the billed service.

The bill type in FL 4 and the place of service in item 24B are how each form states the setting. Chapter 1 of the Claims Processing Manual groups the Medicare bill types the hospital side uses.

How is an outpatient procedure billed?

A procedure done in a hospital outpatient department produces a facility claim on bill type 13x and a surgeon's claim on the CMS-1500 with place of service 22 or 19. The hospital is paid per procedure under OPPS, and the surgeon is paid under the fee schedule at the facility rate.

On the facility side, outpatient hospital services are reported with a revenue code and the HCPCS code for the procedure. A surgical suite charge uses revenue code 0360, and Chapter 25 puts the HCPCS code in FL 44. Under 42 CFR 419.2, OPPS pays predetermined amounts for designated services identified by HCPCS codes, and many related costs are packaged into that payment, including use of the operating suite or procedure room, the recovery room, observation services, anesthesia drugs, and medical and surgical supplies. When several surgical procedures are done at the same time, Chapter 4 says the full amount is paid for the procedure with the highest weight and 50 percent for each other. The OPPS and APCs rule page covers status indicators and packaging.

On the professional side, the surgeon bills the procedure code with POS 22 for an on-campus outpatient hospital department or POS 19 for an off-campus one. Chapter 12 section 20.4.2 says that for a patient who is an outpatient of a hospital in POS 19 or 22, the facility rate is paid regardless of where the face-to-face encounter happened. A surgical code also carries a global surgery period, a policy that 42 CFR 414.40(b)(1) describes as covering post- and pre-operative periods and services and intra-operative services.

Hospital-owned clinics add one more layer. A department that qualifies as provider-based bills as part of the hospital, and 42 CFR 413.65 requires the main provider to treat all Medicare patients, for billing purposes, as hospital outpatients. Off-campus departments report modifier PO or PN on each line, and the clinic visit code G0463 is paid at the PFS-equivalent rate, which CMS sets at 40 percent of the OPPS payment for CY 2020 and later at excepted departments. The provider-based billing and site-neutral payment pages carry the details and the CY 2026 changes.

How is an inpatient stay billed?

An inpatient stay produces one facility claim for the whole admission on bill type 11x, paid per discharge by diagnosis group, and a separate physician claim for each practitioner who treated the patient, using POS 21. Chapter 1 of the Claims Processing Manual lists 11x as the hospital inpatient bill type paid from Part A.

The facility is paid under the inpatient prospective payment system. CMS says the IPPS pays on a rate per discharge basis that varies by MS-DRG, and the payment multiplies the hospital's rate per case by the weight of the assigned DRG. The hospital reports the principal diagnosis, up to 24 additional diagnoses and up to 25 procedures, and the grouper assigns one DRG per discharge under 42 CFR 412.60. That is why inpatient coding accuracy moves revenue on the facility claim, as covered on the MS-DRGs rule page.

A timing rule pulls earlier services into the facility claim. Under 42 CFR 412.2(c)(5), preadmission services otherwise payable under Part B that the hospital, or an entity it wholly owns or operates, furnishes on the admission date and during the 3 calendar days before are treated as inpatient operating costs. Diagnostic services are included, and so are nondiagnostic services unless the hospital attests they are unrelated. For an ER admission at the same hospital, that means the facility's ER charges ride on the inpatient claim and are not billed separately. The full test, including how wholly owned and wholly operated are defined, is in 42 CFR 412.2.

Patient status decides which facility claim exists at all. Observation is an outpatient service, reported on bill type 13x under revenue code 0762 with HCPCS G0378 per hour, and an inpatient stay requires a formal admission. Medicare's two-midnight rule and its observation notice requirements govern how that call is reviewed.

On the professional side nothing is bundled into the DRG. Each practitioner bills their own face-to-face services on a CMS-1500 with POS 21, and Chapter 12 section 20.4.2 says the facility rate is paid for a hospital inpatient, regardless of where the encounter occurred. Chapter 12 section 30.6.8 adds a same-day rule: if the same practitioner sees the patient in the ED and then admits, the initial hospital care is paid and the ED visit is not.

Who bills the technical component and who bills the professional component?

For a diagnostic test in a hospital setting, the facility bills the technical component on its institutional claim, and the physician bills only the professional component, the interpretation, with modifier 26. The HCPCS descriptor for modifier TC says technical component charges are institutional charges and are not billed separately by physicians.

Claims Processing Manual Chapter 13 section 20.1 says A/B MACs pay the professional component of radiology services furnished by a physician to an individual patient in all settings under the fee schedule, and the interpretation includes a written report. A note such as fracture of tibia or EKG normal is a review already paid through the ED visit, not a separate interpretation. For an ER patient, Chapter 13 section 100.1 says generally only one interpretation of an EKG or x-ray is paid, and a second one can be identified with modifier 77 only under unusual circumstances.

Place of service follows the technical component. Section 150 says the POS on the physician's claim for the professional component is the setting where the patient received the technical component, so an ER x-ray read by a radiologist from home is POS 23 on the radiologist's claim. Global billing, the code with no modifier, means one biller reports both components, which applies when a physician owns the equipment in a nonfacility setting. The PC/TC indicator for each code on the Medicare fee schedule file says whether modifier 26 and TC can be used with it.

How do facility and professional E/M levels differ?

The facility level reflects how many hospital resources the visit used, and the physician level reflects the complexity of the practitioner's decision making or the time spent. The same patient can be a level 3 facility visit and a level 4 physician visit, and both can be correct.

For facilities, Chapter 4 section 160 says CMS believes CPT E/M codes were designed to reflect physician activity and do not describe well the services hospitals provide in clinic and emergency visits. While no national facility guideline exists, hospitals apply their own internal guidelines, which should reasonably relate the intensity of hospital resources to the five levels. For physicians, CPT and Chapter 12 use medical decision making or time. The glossary entry for medical decision making defines the elements.

• Facility audit risk is a weak or undocumented internal guideline, applied unevenly across patients.
• Professional audit risk is a level the documentation of decision making or time does not support.
• CARC 150 means the payer deems the information submitted does not support the level of service billed.

What is a facility fee and why do patients see it?

A facility fee is the hospital's charge for the resources of the setting, billed on the institutional claim, separate from the physician's professional fee. Patients see it because they receive two statements for one visit, one from the hospital and one from the practitioner.

The fee appears in two common ways. In an emergency department it is the ED visit line under revenue code 0450 and the lines for ancillary services. In a hospital-owned clinic it is the facility payment for a clinic visit, reported with HCPCS G0463, which CMS pays at a reduced rate at excepted off-campus departments. Texas puts the concept into a notice: its freestanding ER law requires a posted statement that the facility charges rates comparable to a hospital emergency room and may charge a facility fee, and that a physician may bill separately from the facility. The freestanding ER guide covers that setting.

How are hospital-employed physicians billed, and can one company bill both claims?

A hospital-employed physician is still billed on a professional claim, under the billing provider or group NPI in item 33a. One company can prepare both claims, but they are two separate claims with their own billing provider, form and payer rules.

The claim form does not change with employment. The facility claim carries the hospital's billing NPI in FL 56. The physician claim carries the billing provider or group NPI in item 33a, and the rendering practitioner in the service line. How an employed physician's fees reach the hospital is set by employment and reassignment arrangements, not by the claim form. Those are contract and compliance questions, so have counsel review them.

A billing company or an in-house team can work both claims, and the better setups do. A team that sees both claims catches the date, diagnosis and procedure mismatches described below before payers do. Our hospital and facility billing service covers the institutional side, and our professional medical billing service covers the practitioner side.

How does the No Surprises Act treat facility and professional claims?

The No Surprises Act treats the emergency facility and each emergency provider as separate parties, so a facility claim and a professional claim are separate items with separate protections and separate payment disputes. 45 CFR 149.410(a) has two paragraphs for that reason.

Paragraph (a)(1) says a nonparticipating emergency facility must not bill, and must not hold liable, the patient for a payment amount for emergency services that exceeds the in-network cost-sharing requirement. Paragraph (a)(2) says the same for a nonparticipating provider who furnishes an emergency service during the visit. Under 45 CFR 149.510(a)(1), the federal independent dispute resolution process applies to a nonparticipating provider or nonparticipating emergency facility. A facility and a physician group that both billed out of network each need their own open negotiation and, if it fails, their own dispute.

In practice, that means a team needs deadline tracking per claim, not per visit. The No Surprises Act overview links the open negotiation, IDR and batching pages, and a separate guide for ER groups takes the physician side in depth.

Where do the two claims have to agree?

The two claims should tell the same story on dates, diagnoses and procedures, even though they use different codes. Payers do not formally reconcile them, but audits and denial reviews compare them.

• Dates of service: the facility line date and the professional date match for the same encounter, including visits that cross midnight.
• Diagnosis: the facility principal diagnosis (FL 67) is consistent with the diagnoses on the professional claim.
• Procedures: every procedure on the facility claim has a physician note, and every professional procedure has a facility charge.
• Modifier 25: if the physician claim shows a significant, separate visit with a procedure, the facility visit line shows the same logic.
• Place of service and bill type: POS 23 on the professional claim goes with an emergency bill type and revenue code 0450 on the facility claim.
• Patient status: an inpatient admission means POS 21 for later days and 11x on the facility side, and an observation stay stays on 13x.

How should a CFO budget for both revenue streams?

Budget the facility and professional streams as two ledgers with separate volume, payment and denial assumptions, because they are paid by different systems and fail for different reasons. Do not net them together in one A/R number.

1. Split A/R by claim type: institutional by bill type and professional by group NPI.
2. Set a payment basis for each stream: OPPS or IPPS rates for Medicare facility, the fee schedule for Medicare professional, and the contract for commercial payers.
3. Track each stream's denial rate separately, using a common way to calculate it: denied claims divided by claims submitted in the period.
4. Track each stream's days in A/R separately and compare against its payer mix, because a Medicare-heavy facility book and a commercial-heavy professional book will not look alike.
5. Model out-of-network emergency volume as its own line with a separate open negotiation and IDR timeline, since facility and professional recoveries follow separate disputes.

For a hospital that employs its emergency physicians, the budget is the sum of the two streams and the labor cost of the physicians. For a hospital that contracts with an ER group, the group's professional revenue is the group's, and the hospital's budget carries only the facility stream. Either way, the stream owner needs the other claim's status to answer a patient or payer question.

How do we handle facility and professional billing?

We work both sides of a visit. Our hospital and facility billing covers UB-04 inpatient and outpatient claims, plus professional claims on the CMS-1500. For the institutional side that means claim preparation, revenue-code validation, submission, payment reconciliation and denial management for inpatient, outpatient and emergency care.

Our UB-04 accuracy checks cover bill type, revenue codes, patient status, condition and occurrence codes, authorization requirements and payer-specific rules. Claims go out within 24 hours of charge entry, and denials are worked within 48 hours. We align each EHR, clearinghouse and payer portal workflow with verified team experience, standard claim validation, reconciliation controls and performance monitoring.

When an emergency visit goes out of network, we run open negotiation and federal IDR for the facility and the professional claim, tracked separately. You can book a call to talk through your own mix of claims. This guide is general information, not legal advice; have counsel review contract and employment questions.