Professional and institutional claims can look similar, but they represent different billing purposes, claim formats, and services. Confusing the two can lead to incorrect claim submission, coding issues, processing delays, or denials. For medical billers, CPCs, RCM teams, and providers, knowing which claim applies is essential for accurate reimbursement.
Understanding these differences can help billing teams select the appropriate claim format, review coding and claim data, and identify common submission errors before they affect reimbursement. CMS continues to distinguish professional and institutional claims by their billing purpose, format, and electronic transaction type. Professional claims generally use the CMS-1500/837P, while institutional claims use the CMS-1450 (UB-04)/837I (patients can see how to get a UB-04 form from a hospital).
This guide explains the difference between professional and institutional claims in practical terms. You will learn how professional claims differ from facility claims, how CMS-1500 vs UB-04 fits into the process, and how 837P and 837I electronic transactions are used. Real-world examples will also show how both claim types can apply to one patient encounter.
Professional Claims vs Institutional Claims
Professional and institutional claims serve different billing purposes, even when they relate to the same patient encounter. Knowing who is billing and what service is being reported helps prevent claim-format and coding errors.
What Is a Professional Claim?
A professional claim reports healthcare services provided by an individual practitioner or other eligible professional. It is commonly submitted by physicians, NPs, PAs, therapists, and other professional providers for services they personally perform or bill.
- Standard paper formCMS-1500
- Electronic transaction837P
- Common codingCPT and HCPCS Level II procedure codes, ICD-10-CM diagnosis codes, modifiers, units, charges, and place-of-service information
- Typical billing entityPhysician or other professional provider
- Common settingsPhysician offices, outpatient facilities, hospitals, clinics, and other professional service locations
What Is an Institutional Claim?
An institutional claim reports services and resources furnished by a facility or institutional provider. Hospitals, skilled nursing facilities, rehabilitation facilities, and other institutional providers may submit these claims based on their applicable billing requirements.
- Standard paper formCMS-1450, commonly called UB-04
- Electronic transaction837I
- Common dataRevenue codes, ICD-10-CM diagnosis and procedure information, units, charges, bill type, and other facility-specific claim data
- Typical billing entityHospital or other institutional provider
- Common settingsInpatient hospitals, outpatient hospital departments, SNFs, and other facility settings
CMS-1500 vs UB-04: What Is the Difference?
CMS-1500 is generally used to report professional services, while UB-04 is used to report institutional or facility services. The difference affects the claim data, billing entity, and electronic transaction used for submission.
CMS-1500 for Professional Claims
The CMS-1500 is the standard paper claim form used for many professional healthcare services. Physicians, NPs, PAs, therapists, and other eligible practitioners may use it when billing for their professional services.
Professional claims commonly include:
- Patient and subscriber information
- Rendering and billing provider details
- CPT or HCPCS Level II codes
- ICD-10-CM diagnosis codes
- Modifiers and units
- Charges and applicable payment information
- Place-of-service (POS) code
- Referring or ordering provider information when required
For electronic billing, the corresponding transaction is generally 837P. A professional claim can be submitted for services performed in a hospital, so the location alone does not determine the claim type.
UB-04/CMS-1450 for Institutional Claims
The UB-04, also called the CMS-1450, is the standard paper form for institutional billing. Hospitals and other facility providers use it to report applicable facility services and related charges.
Institutional claims can contain:
- Patient and payer information
- Provider and facility identifiers
- Revenue codes
- Applicable HCPCS or CPT codes
- ICD-10-CM diagnosis and procedure information
- Units and charges
- Bill type information
- Facility-specific claim data
The corresponding electronic transaction is generally 837I. For a hospital encounter, the facility may submit a UB-04/837I claim while the physician submits a separate CMS-1500/837P claim for professional services.
Professional Claims vs Institutional Claims: Key Differences
The easiest way to understand professional claims vs institutional claims is to ask two questions: Who is billing, and what is being billed? Professional claims report services provided by individual practitioners, while institutional claims report facility services and related charges.
| Difference | Professional Claims | Institutional Claims |
| Billing entity | Physician or other eligible professional | Hospital or other institutional provider |
| Primary purpose | Reports professional healthcare services | Reports facility or institutional services |
| Paper form | CMS-1500 | UB-04/CMS-1450 |
| Electronic format | 837P | 837I |
| Common coding | CPT, HCPCS Level II, ICD-10-CM, modifiers | Revenue codes, applicable HCPCS/CPT, ICD-10-CM, and facility claim data |
| Place of service | Office, clinic, hospital, and other professional service locations | Inpatient, outpatient hospital, SNF, and other institutional settings |
| Billing focus | Practitioner’s services | Facility services, resources, and charges |
Professional vs Institutional Claims: Real-World Examples
Real billing situations make the professional claims vs institutional claims distinction easier to apply. The same patient encounter can involve separate claims because the practitioner and facility may bill for different services.
A patient visits a physician for evaluation and treatment.
- Professional claim: The physician bills for the examination, medical decision-making, and other eligible professional services.
- Claim format: CMS-1500 or 837P
- Common coding: CPT/HCPCS and ICD-10-CM
There is generally no separate institutional claim when the physician practice itself is responsible for the services and facility costs involved.
A patient is admitted to a hospital for treatment.
- Institutional claim: The hospital reports applicable facility services, room and board, supplies, medications, and other billable resources.
- Professional claim: The physician separately reports professional services such as evaluation, treatment, or inpatient management.
- Formats: UB-04/CMS-1450 or 837I for the facility; CMS-1500 or 837P for the professional provider.
This is a key point in understanding the difference between professional and institutional claims: one encounter can produce two claims from two different billing entities.
A patient receives a procedure in an outpatient hospital department.
The hospital may submit an institutional claim for the facility services, while the physician or other eligible practitioner submits a professional claim for their professional work.
Billing teams should review both claims separately because coding, documentation, payer edits, and reimbursement rules can differ between the facility and professional portions.
Common Professional Claim Errors
Professional claim errors can affect clean claim submission, payer processing, and reimbursement. Most problems occur when provider, patient, coding, or claim details do not match the service documented in the medical record.
Common errors include:
Common Institutional Claim Errors
Institutional claims contain more facility-level information than professional claims, so errors can affect how the payer interprets the entire claim. Accurate patient, facility, coding, and billing data should be checked before an 837I claim is submitted.
Common institutional claim errors include:
Conclusion
Understanding professional claims vs institutional claims helps providers, CPCs, and billing teams select the correct claim format, coding data, and electronic transaction. CMS-1500/837P generally supports professional services, while UB-04/837I supports institutional billing.
Because one patient encounter can involve both claim types, billers should verify the billing entity, services, coding, documentation, and payer requirements before submission. Accurate claim selection can reduce avoidable errors and support timely reimbursement.
FAQs
What is the difference between professional and institutional claims?
A professional claim reports services provided by a physician or other eligible healthcare professional, while an institutional claim reports facility services. Professional claims generally use CMS-1500/837P, while institutional claims generally use UB-04/CMS-1450/837I.
Is CMS-1500 a professional or institutional claim?
CMS-1500 is generally used for professional claims. It reports services provided by physicians and other eligible practitioners. The electronic equivalent is generally the 837P transaction.
Is UB-04 the same as CMS-1450?
Yes. UB-04 and CMS-1450 refer to the same institutional paper claim form. Hospitals and other institutional providers use it to report applicable facility services. The corresponding electronic transaction is generally 837I.
What is the difference between 837P and 837I?
837P is the electronic transaction generally used for professional claims, while 837I is generally used for institutional claims. The two formats contain different claim data based on the billing entity and services being reported.
Can one patient encounter have both professional and institutional claims?
Yes. A hospital encounter can generate both. The hospital may submit an institutional claim for facility services, while the physician submits a separate professional claim for professional services. Each claim represents a different billing component of the encounter.
