Thiethylperazine maleate, 10 mg, oral, fda approved prescription anti-emetic, for use as a complete therapeutic substitute for an iv anti-emetic at the time of chemotherapy treatment, not to exceed a 48 hour dosage regimen

Still listed by CMS but carries a termination date, so it is not valid for a current date of service.

Terminated with effect from 2025-12-31. First published 2023. CMS still lists this code in the current quarterly file - it carries a termination date rather than being removed.