Destruction of Greater and Lesser Occipital Nerves

Reno, Nevada
Best answers
Would the correct coding for this procedure be 64640x2 since this is RadioFrequency? I have done a lot of research and have read to use 64405 for Greater Occipital and 64450 for Lesser Occipital, those codes are for Nerve Blocks, not RF.

Any comments are appreciated.
Thanks in advance!

'Following appropriate time for the anesthetic effect and under fluoroscopic guidance 20g 60mm Sharp Tip Baylis BMC Curved Needle with a 10mm Active Tip was advanced incrementally under fluoroscopic guidance into the Right Greater Occipital Region. Proper needle position was confirmed with AP and Lateral views. Following the proper localization, sensory stimulation was documented at less than 0.5 volts. The same technique described above was utilized at the Left Greater Occipital Region , Right Lesser Occipital Region.'