atcvet code qi atcvet code qi atcvet code qi immunologicals is a section of the anatomical therapeutic chemical classification system for veterinary medicinal products, a system of alphanumeric codes developed by the world health organization (who) for the classification of drugs and other medical products for veterinary use. national issues of the atc classification may include additional codes not present in this list, which follows the who version. qi immunologicals qi01 immunologicals for aves qi02 immunologicals for bovidae qi03 immunologicals for capridae qi04 immunologicals for ovidae qi05 immunologicals for equidae qi06 immunologicals for felidae qi07 immunologicals for canidae qi08 immunologicals for leporidae qi09 immunologicals for suidae qi10 immunologicals for pisces qi11 immunologicals for rodents qi20 immunologicals for other species a b c d g h qi j l m n p r s v