CPT Knowledgebase - Jun 16, 2015

Should code 64640 x4 be reported per lesion because it is a single percutaneous entry point or should the unlisted code 64999 be reported? What is the appropriate code to use for radiofrequency (eg, Simplicity III Radiofrequency Probe) for sacroiliac (SI) joint nerve destruction from a single percutaneous entry site in the fol-lowing procedure? The Simplicity III electrode was then advanced, maintaining continuous contact with the sacrum, on a cephalad and slightly lateral line, staying lateral to the sacral foramen, medial to the sacroiliac joint, and ventral to the ilium, until contact with the sacral ala prevented further advancement. Appropriate positioning was confirmed by changing the caudal/cephalad tilt of the C-arm to parallel the superior endplate of S1; and verifying once again that the entire length of the Simplicity III electrode was advanced to the ipsilateral sacral ala and the three in-dependent, active contacts were positioned adjacent to the S1, S2, S3, and S4 lateral branch innervation pathways. Lesioning was then carried out using the Simplicity III preprogrammed protocol at 85 degrees centigrade for five minutes.

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