Because there are not any documentation guidelines in terms of time spent for preventative medicine CPT codes (99381-99397), it is difficult to "carve out" the time for the smoking cessation. We do not bill these separately when patients present for routine care. You may bill the smoking cessation when billing E&M office visits 99201-99205, 99212-99215, as long as the documentation is separately identifiable and supports both. Use a -25 modifier on the office visit.
Pam Brooks, CPC