Where the time, effort and skill required to perform a particular
procedure vary widely from one occasion to the next, the Director may
choose not to assign a relative value to that procedure. In this case
the allowable charge for the procedure will be set individually based on
consideration of a detailed medical report and other evidence. At its
discretion, OWCP may set fees without regard to schedule limits for
specially authorized consultant examinations, for examinations performed
under 5 U.S.C. 8123, and for other specially authorized services.