I was told today by a student of a coding class that if a patient came in for a sore throat in the morning and then saw the same provider for a cut finger in the afternoon that it would committing fraud to bill for 2 separate E/M codes. Is that true? I was under the impression that if it were 2 separate diagnsosi codes that you could bill for the second visit with modifier 25. Is there a rule somewhere? Thanks in advance for your input.