In a Problem pertinent Review of Systems (ROS), how many systems are involved?

In the context of a Problem Pertinent Review of Systems (ROS), only one system is typically involved. This type of review focuses specifically on the systems relevant to the patient's current medical issue or complaint. The Problem Pertinent ROS is designed to capture only the information necessary for the immediate assessment and is not intended to encompass a comprehensive analysis of multiple systems, which is characteristic of a more detailed review.

In clinical practice, this means that during a focused visit where a specific problem is being addressed—such as chest pain or shortness of breath—the physician would inquire about symptoms only related to that particular system, which could be the cardiovascular system in this case. Therefore, recognizing that the Problem Pertinent ROS deals with just one system is essential for accurately coding and documenting a patient's evaluation.