Which statement best describes correct Modifier 25 usage?

• A. A patient has a problem-focused visit with a separately identifiable E/M service on the same day as another procedure; documentation must show two distinct services
• B. Modifier 25 indicates a separate procedure performed
• C. Attach Modifier 25 to all procedures performed on the day
• D. Use Modifier 25 to indicate a separately identifiable E/M service on the same day as another procedure

Answer: (D)

Modifier 25 signals a separate evaluation and management (E/M) service occurred on the same day as another procedure. It’s attached to the E/M code to show that the visit was a distinct, significant service beyond the procedure itself, and the documentation must support why this E/M visit is separate from the procedure.

This is the best way to describe correct usage: you’re billing an E/M service that stands on its own in addition to a procedure performed that day, and the E/M service must be documented as separate from the procedure so it’s eligible for distinct payment. For example, if a patient comes in for a minor procedure but also has a new problem that requires a full E/M assessment, you would append Modifier 25 to the E/M code (not to the procedure). The procedure would be billed separately without the modifier, assuming no other modifiers apply.

Modifier 25 does not indicate a separate procedure, nor should it be attached to all procedures on a given day. It’s specifically about marking a separately identifiable E/M service performed in the same encounter as another procedure, supported by clear documentation of the separate visit.