Piriformis muscle injection reporting -
In the December 2011 issue of the CPT Assistant (page 8), instruction in the article stated that sciatic nerve injection code 64445, Injection, anesthetic agent; sciatic nerve, single, should not be used to report a piriformis muscle injection.
However, from a CPT coding perspective, piriformis muscle injection(s) should be reported using CPT code 20552, Injection(s); single or multiple trigger point(s), 1 or 2 muscle(s). For further clarification, should fluoroscopic guidance be performed, this is additionally reported using code 77002, Fluoroscopic guidance for needle placement (eg, biopsy, aspiration, injection, localization device.