Which statement about the CPT/HCPCS modifiers is true?

• A. They indicate laterality, multiple procedures, and separate payment.
• B. They identify the department within the hospital.
• C. They provide additional details about the service.
• D. They identify the payer.

Answer: (A)

Modifiers attached to CPT/HCPCS codes add information that can change how a service is billed. They indicate details like which side was treated (left, right, or bilateral), when multiple procedures are performed in the same encounter, and when a separate payment may be appropriate for the procedure or its component. These aspects directly affect payment and coding precision, which is why this statement best captures the role of modifiers in CPT/HCPCS coding. Modifiers do not identify the department within the hospital, and while they do convey extra details about the service, their primary impact is on how payment is determined. They also do not identify the payer.