It seems from what I read in the AAD article that if the patient uses his annual preventive screening exam with us, then he cannot have one with his general practitioner. ("Usually an insurance carrier will only pay one preventive medicine service per year. If the patient requests these preventive visit codes to be used, have the patient sign a financial liability waiver.") So it's hard to imagine how an ethical dermatologist could justify "using up" his patient's one and only comprehensive screening visit of the year on a single-system exam.
My take on the issue of patients coming in for skin screening visits is as follows:
1) If the patient has a history of skin cancer, then this is a billable office visit (992xx) with V10.82 or V10.83 as the first diagnosis.
2) If they have no skin cancer history, and there are some positive findings on exam which are managed non-surgically (ie: reassurance, counseling, prescription, etc.) then this is a billable office visit (992xx) and those positive findings are the diagnosis.
3) If they have no skin cancer history and entirely negative findings on the exam (or the only positive findings are treated with biopsy or other surgery at the time of visit), then there is nothing billable (unless you use the annual preventive visit which, as discussed above, I don’t think any of us would do). I would code it as a regular office visit (992xx) with V82.0 as the diagnosis and either write it off as a courtesy or collect payment up front from the patient as a non-covered service. (Note that Medicare allows you to collect non-covered services from the patient , and explicitly lists V82.0 as one of these services. See “ Medicare National Coverage Determinations (NCD) Coding Policy Manual and Change Report January 2013” page 5.)