Check yourself against the scenarios on page 12. Example 1: Problem-oriented visit In a new patient, this would be a detailed history, a level-three history with only two ROS (even though many physicians obtain a complete ROS and PFSH on a new patient). This example shows only information relevant to the presenting problem. This visit supports 99203, if it were based on the patient's history (one of the "3 of 3" key components required in a new patient visit), according to Sandy Adams-Stevens, a coding/documentation specialist with Heritage Medical Associates in Nashville, Tenn. For an established patient, a detailed history is known as a level-four history. Example 2: