I'm about a year into my first coding job, and when a coworker gave me this audit sheet when I started, she said 1-4 systems is expanded and 5-7 systems would fit into detailed, so that is how we interpret that at my workplace. I also have found some will say if there are 2 or more bullet points addressed in a system, that shows more detail, so that is something to consider. Therefore, if 5 systems are examined minimally (1 bullet point addressed), I might consider that an expanded exam, but if 5 systems are examined in more detail, I might go with the detailed exam. Other factors may come into play in my decision as well when it's a fine line between an expanded or detailed exam, such as reason for visit and whether the systems examined fit with that reason. (Some of my providers occasionally document detailed exams that go well beyond what is needed to address the chief complaint.)