Sugical clearance- Possible......
G. Consultation for Preoperative Clearance
Preoperative consultations are payable for new or established patients performed by any physician or qualified NPP at the request of a surgeon,
as long as all of the requirements for performing and reporting the consultation codes are met and the service is medically necessary and not routine screening.
As for a list of reasons...the validity of the consult will be dependant on the
intent for the visit. (The 3 R's)
30.6.10 is a good resource for this information. It also provides some examples of what does/doesn't constitute a consult
http://www.cms.hhs.gov/manuals/downloads/clm104c12.pdf