Question: South Carolina Subscriber Answer: In most pediatric practices, the staff members will triage the patient to determine if the condition is considered emergent. If it's determined to be non-emergent, they offer the patient the next available appointment, and if the patient needs to be seen immediately, they will disrupt the physician's schedule to ensure that the walk-in patient is seen. There are some situations in which you can report the office visit code (99212-99215) with 99058. The severity of the illness or the injury determines the appropriate use of the 99058 code. It is not just a walk-in code, but is required to address a problem that demands the physician's immediate attention, therefore disrupting their schedule.