OCT 20, 2022
Canaloplasty
What type of procedure would qualify as canaloplasty, CPT code 66174?
Answer:
Cannulation of Schlemm’s canal with a catheter or stent with either an internal or external approach for at least three clock hours with an injection of viscoelastic while removing the stent to dilate the canal would be a canaloplasty. Alternatively, viscoelastic injections made via three or more punctures of the trabecular meshwork spanning at least three clock hours (90 degrees) to dilate Schlemm’s canal should also qualify as canaloplasty, CPT code 66174. Anything less is CPT code 66999, unlisted procedure, anterior segment.
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