November 16, 2017

Question:
If two injections are performed in a single facet joint, for example, at L3-L4, is 64493 coded once or twice?

Answer:
For medial branch blocks (MBB), two nerves innervate a single facet joint . Therefore, two injections at one facet joint is reported with one CPT code, not two.

*This response is based on the best information available as of 11/16/17.