Which code indicates that emergency personnel are en route?

The code indicating that emergency personnel are en route is commonly understood to be 10-84. This code is utilized in various communication systems to specifically denote that assistance is currently on the way to a scene. The use of such codes streamlines communication among emergency personnel and dispatchers, ensuring clarity and efficiency when responding to situations that require immediate attention.

The other codes mentioned serve different purposes in the communication lexicon. For instance, 10-75 typically indicates a structure fire or provides an alert in that specific context, while 10-80 is often related to pursuits or situations where a suspect is evading capture. Similarly, 10-78 refers to the need for assistance but does not specifically indicate that personnel are already en route. Understanding the distinctions between these codes is crucial for effective communication in emergency response scenarios.