Our surgeons are wanting to bill for epiaortic scanning when performing CABG. We have been using CPT codes 37250/75945 and have been getting denials because the primary code isn't billed. We know which codes the primary codes are but the surgeons insist this is appropriate/medically necessary when they perform CABG. Due to the lack of information found on the web, I am hoping someone has some information that will clarify this for me.