auditing
It sounds like you are talking about auditing chart notes for E/M codes. (I audit all types of bills on a daily basis in my job.)
First, if your charts do not have the following components, you probably won't meet the requirements for the codes being billed: patient history, physical exam, and medical decision making. You must have all 3 for a new patient. You need 2 out of 3 for an established patient. If one of those required components is missing, you won't pass an audit.
patient history component:
Your patient history needs to include the history of the present illness, a review of body/organ systems and depending upon your level being billed, past/family/social history. A detailed history is going to include one, and a comprehensive is going to require 2 of the 3 (past/family/social)
exam component:
physical exams are obvious, so I don't need to go into much detail here.
medical decision making:
this includes the diagnosis, ordering tests/labs/radiology, etc, and/or a treatment plan.
The auditing tool sounds like it will be useful. I do use a levelling sheet at work. I have seen similar ones that also work. I have been auditing E/M codes for the past 3 years and after a certain amount of time, you get a feel for what is necessary...what to look for. It's not unusual to discover that one or more components are missing after I get the bill for processing.