Which code would indicate that an officer is signaling they are coming by the office?

The code that indicates an officer is signaling they are coming by the office is 10-53. This code is specifically designated within the Pinellas County Sheriff's Office communication system for that purpose. Knowing and correctly using this code helps maintain clear and efficient communication among law enforcement personnel.

The other codes listed do not pertain to notifying that an officer is en route to the office, which allows for a quick and effective sharing of information among officers and dispatch. Understanding the specific meanings of each code is integral to effective police communication, ensuring that all officers are well-informed about each other's statuses and actions while working.