I came across a circumstance in my work place where a coder was doing preprospective auditing on a note from an E/M visit and the documentation did not meet the level of service that the doctor selected even though the visit did qualify for this particular level.The coder went back to the physicain and had her do an addendum to code based on time so that it could be billed with the level selected.I was told that once a note is audited this is not allowed.What is the correct thing to do?