What is the appropriate coding for the capture, injection and interpretation when the SPY Imaging system is used. It is a system used to capture fluroescent images for visual assessment of blood flow. This is used as an adjunctive method for the evaulation of tissue perfusion in tissue and free flaps for micro-, recon and plastic surgical procedures. The plastic surgeon is performing the injection, imaging and interpretation during the surgical procedure.
Would the following be correct?
15860 intravenous injection of agent (e.g. fluroscein) to test vascular flow in flap or graft
76499 for radigraphic procedure

also there could be a series of injections, so would you increase the units for 15860 with each injection?