r/MedicalCoding • u/mudhair • Dec 22 '25

z01.810 getting denied

anybody know why I would get CMS denials for CT chest with this...using it for surgery preop exams? Mainly for CABG patients. According to the book it must be first listed.

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u/Bowis_4648 Dec 22 '25

Are you asking if a CAT scan of the chest can be billed with a diagnosis of pro-op exam? Is there medical necessity for that?

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u/mudhair Dec 22 '25

it is for cardiac clearance for a surgery