GeezerVison

ATC code J01 Antibacterials for systemic use is a therapeutic subgroup of the Anatomical Therapeutic Chemical Classification System, a system of alphanumeric codes developed by the World Health Organization (WHO) for the classification of drugs and other medical products.^[1][2][3] Subgroup J01 is part of the anatomical group J Antiinfectives for systemic use.^[4]

Codes for veterinary use (ATCvet codes) can be created by placing the letter Q in front of the human ATC code: for example, QJ01.^[5] ATCvet codes without corresponding human ATC codes are cited with the leading Q in the following list.
National versions of the ATC classification may include additional codes not present in this list, which follows the WHO version.

Subgroups J01EA–E are only included in the human ATC classification.

In ATCvet, this subgroup is named "QJ01M Quinolone and quinoxaline antibacterials".