When would UB-04 be used instead of CMS 1500?

• A. UB-04 is used for professional claims; CMS 1500 for institutional claims
• B. UB-04 is used for institutional claims; CMS 1500 for professional claims
• C. UB-04 is used for pharmacy claims; CMS 1500 for vendor claims
• D. UB-04 is unused; CMS 1500 is for all claims

Answer: (B)

This is about the billing distinction between professional and institutional claims. UB-04 is used for institutional claims—those from facilities such as hospitals, skilled nursing facilities, inpatient/outpatient departments, and similar organizations that bill for facility charges. It captures details like revenue codes, patient stay status, days in the facility, room and board, and other facility-specific charges.

CMS 1500 is used for professional claims—billed by individual clinicians or non-institutional providers (physicians, therapists, clinics) for the services they personally performed. It reports professional services with CPT/HCPCS codes and modifiers, focusing on the clinician’s work rather than facility charges.

So, when the claim reflects institution-based charges from a facility, UB-04 is the correct form; when the claim reflects professional services provided by a clinician, CMS 1500 is the correct form.