Below is from 2013 April AMA CPT Assistant . Although the article mentions 64613 which has been replaced in 2014. The coding guidance for 64615 is still current. There is not a requirement that guidance is performed to report 64615.
"The new code 64615, Chemodenervation of muscle(s); muscle(s) innervated by facial, trigeminal, cervical spinal and accessory nerves, bilateral (eg, for chronic migraine) was created specifically for reporting chemodenervation of muscles innervated by facial, trigeminal, cervical spinal, and accessory nerves, for the treatment of conditions including chronic migraine"
As a result of a new injection paradigm approved by the Food and Drug Administration (FDA) for the treatment of chronic migraines, a new code (64615) was established for the CPT 2013 code set that describes the injection of muscles innervated by the facial, trigeminal, cervical spinal, and accessory nerves. It was necessary to create code 64615 as the use of codes 64612 and 64613 did not describe the totality of the work performed in this procedure.
Coding Tip
2014 AMA CPT Assistant January
Other updates to this subsection include: revision of the exclusionary parenthetical note following code 64615, removing the reference to deleted codes 64613 and 64614, and stating that code 64615 should not be reported in conjunction with chemodenervation codes 64612, 64616, 64617, and 64642-64647. A parenthetical note was added following code 64615 to direct users to report codes 95873 and 95874 for guidance, and to clarify that it is not appropriate to report more than one guidance code for 64615.
Prior to CPT 2014, code 64613 was intended to describe multiple uses of chemodenervation of the neck muscles (eg, spasmodic dysphonia, spasmodic torticollis). The intent of new code 64616 is to report unilateral chemodenervation of the neck muscle(s), excluding those intrinsic to the larynx (eg, for spasmodic torticollis, cervical dystonia). If local anesthesia is performed, it is considered integral to the service. If performed bilaterally, modifier 50, Bilateral Procedure, should be appended.
