Wiki Labwork before contrast medium for CT

[Chanke]

For labwork done to clear a patient to receive contrast medium for a CT scan woould it more apprpriate to use v72.63 pre procedural lab exam or v72.85 special exam?

I think v72.63 makes more sense but the supervisor thinks 'procedural' means surgery.......

BTW, previously everyone was using v72.85.

Any thoughts??