Ask Dr. Z

Does a separate report need to be created to support the filing of both codes 76380 and 76377 when a cone beam CT hepatic artery injection and 3D reconstruction are performed in conjunction with diagnostic hepatic arteriography in Y-90 planning? Alternatively, in reporting codes 76380 and 76377, is it sufficient to only note that the cone beam CT was completed during the angiographic procedure? Findings are reported as a single discussion without specifically noting what modality (angio or CT) was used, both having been completed. Reference is made to the angio and CT in the conclusion. How much documentation is required to support these codes?