Wiki here's a good one for you

To add more words to the previous two replies...they are both absolutely correct.

RF of medial branch nerves for spinal pain is the destruction by burning of medial branch nerves. To kill a nerve by burning requires a RF needle temperate of 180 degrees for a certain period of seconds.

Pulsed RF is the buring of nerves at a lower temperate (around 140 degrees?). It is proportedly a more effective means of reducing spinal pain. However, the coding issue is that since the RF needle isn't at "nerve killing" temperature, can you call it nerve destruction?

The general answer is "no". Hence, use 64999
 
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