I have an issue that has come across my desk regarding spinal cord stimulator implantation (63650) – specifically, the electrode array (L8680). I have conflicting information. This procedure was billed with POS 11 and the L8680 was billed for 16 units (2 electrode leads w/ 8 contacts each). Per CPT guidelines, each electrode is one unit regardless of the number of contacts, but during an AAPC webinar, one of the slides presented shows that the units needed to be increased to the number of contacts on the electrode. Not sure which way to go with this one, especially since it was done in the clinic setting! Which is correct?