What does modifier 66 signify in surgery coding?

Modifier 66 is used to indicate that a surgical procedure was performed by a surgical team comprised of multiple surgeons. This modifier is applied in scenarios where a complex surgery requires the collaboration of several specialists to ensure its successful execution. It reflects the involvement of a coordinated group rather than just one surgeon operating independently.

This modifier is essential for proper billing and coding as it denotes the increased complexity and resources associated with the procedure. The inclusion of this information helps insurers understand that the surgery was beyond the capacity of a single surgeon and ensures that the surgical team is appropriately compensated for their teamwork in delivering the surgical care.