What modifier bills with procedure code 99284?

Procedure code 99284 is used for an emergency department visit that involves a moderate level of complexity in the evaluation and management of a patient. Common modifiers that may be applied to this code include Modifier 25, which indicates that a significant, separately identifiable service was provided on the same day, and Modifier 50, which indicates a bilateral procedure. Additionally, Modifier 59 may be used to signify that a procedure or service is distinct or independent from other services performed on the same day. Always check specific payer guidelines for proper modifier usage.