as per below instruction of AHA article
Pelvic Floor Injections
AHA Coding Clinic for HCPCS, Second Quarter 2021, Volume 21, Number 2, Page 9
QUESTION 8
A patient with pelvic floor pain and pelvic floor muscle high-tone dysfunction was administered bilateral botulinum injections in the pelvic floor muscles. A bilateral pudendal block was given under finger guidance into the Alcock’s canal. With a finger in the vagina to confirm location and depth of the injection, botulinum was injected into two locations in each obturator internus muscle bilaterally, followed by an injection into one location in each of the pubococcygeus, ileococcygeus, coccygeus and puborectalis muscles bilaterally. The provider has documented the injections as trigger point injections. However, when injecting a toxin such as botulinum, is it more appropriate to assign a code for chemodenervation from CPT code range 64642-64647? If so, would it be appropriate to assign CPT code 64646, Chemodenervation of trunk muscle(s); 1-5 muscle(s), to capture injections into the pelvic floor muscles?
ANSWER
Assign CPT code 20553, Injection(s); single or multiple trigger point(s), 3 or more muscles, for the injection of botulinum into the pelvic floor muscles as the provider has specifically documented the procedure as trigger point injections. A trigger point injection targets the muscle to alleviate pain. Although botulinum is a toxin utilized in chemodenervation, it can be used for trigger point injections when the target is the muscle. In addition, report the number of units of botulinum administered with HCPCS Level II code J0585, Injection, onabotulinumtoxinA, 1 unit.
Coding advice contained in this issue is effective with procedures/services provided after May 26, 2021, unless otherwise noted.