What is the role of HCPCS/CPT codes on UB-04?

• A. They identify the department within the facility.
• B. They list the patient's diagnosis codes.
• C. They determine the payment amount allowed by the payer.
• D. They specify the exact service or procedure performed for that line item.

Answer: (D)

HCPCS/CPT codes on the UB-04 describe the exact service or procedure performed for that line item. They tell the payer precisely what was done—whether it was a specific surgical procedure, imaging test, or therapeutic service—so the claim can be reviewed for coverage and payment. The department or location is indicated by the revenue code, not by the HCPCS/CPT code. Diagnosis codes (ICD-10-CM) describe the patient’s condition and justify the service, but belong on a separate area of the form. While payment amount depends on payer rules and modifiers, the primary role of these codes on each line is to identify the service performed.