Chromoscopy

What procedure code would you use for a staining chromoscopy with methylene blue? Some of our Doctors are now performing this in addition to colonoscopy with polypectomy and colon biopsy.

re: Chromoscopy

Looks like maybe unlisted code 44799.

https://www.bcbsri.com/sites/default/files/polices/Chromoendoscopy_as_an_adjunct_to-Colonoscopy.pdf