Same specialty or different specialty?
If they are of the same specialty, they are considered one doctor for payment purposes.
If they are of different specialties, there shouldn't be a multiple surgery reduction. HOWEVER, some payers do not recognize this and will apply the reduction.
The purpose of the reduction is to account for the fact that a surgeon will not perform separate pre- and post-operative care for the additional procedures performed. However, if both surgeons will be independently providing pre- and post-op care (for the respective procedures performed), then you should appeal with full documentation (not just op note but clinic/office visits as well).
Hope that helps.
F Tessa Bartels, CPC, CEMC