After official inquiries, you need to study records management to work in a hospital records office, and you need to get a records manager's certificate.
Hospitals are institutions that treat and care for patients, and also do health checkups, disease prevention, etc. It is a medical institution that provides medical treatment and recuperation services for the sick through medical checkups, tests, treatments, and other equipment by hospital staff specialized in the division of labor, and its clients are the patients with illnesses, the injured, and pregnant women undergoing childbirth, etc., who are aware of or recognize that they have a serious problem psychologically or physiologically.