And enhance your E/M coding skills with some expert ROS opinion. A review of systems (ROS) is a key component in the complex equation you use to determine an E/M level. But just how deeply do you understand this inventory of body systems and the way it informs your provider’s understanding of the patient’s condition? Answer the following four questions correctly, then digest our experts’ opinions, and you’ll be well on your way to becoming an ROS authority. Question 1: Why is an ROS needed?
Question 2: What are the different kinds of ROS, and how do they help determine the E/M level?
Question 3: Who can record an ROS?
Question 4: How do you document an ROS?