Ask Dr. Z

We did a diskogram at three different lumbar levels, so I have coded 62290x3 and 72295x3 with modifiers. Our Radiologist is also wanting us to code CPT 64999 additionally for what he is calling a functional anesthetic diskography. He placed these tiny little, what he is calling functional micro balloon catheters at each level. After the conventional diskogram he left the catheters in place and stood the patient up and injected lidocaine at each level waiting 20 minutes between levels and had the patient bend forward and back and from side to side as well. All of this is documented in his dictation with pain levels from the patient. Would you suggest additional coding for this? Your help is greatly appreciated! Thank you!