Veterinary Activities ISIC Code 7500. This class includes animal health care and control activities for farm animals. Animal health care and control activities for pet animals. These activities are carried out by qualified veterinarians when working in veterinary hospitals as well as when visiting farms, kennels, or homes, in their own consulting and surgery rooms, or elsewhere. Activities of veterinary assistants or other auxiliary veterinary personnel. Clinico-pathological and other diagnostic activities pertaining to animals. Animal ambulance activities