Recent concepts of running a hospital concerns not only social aspects, but also economical. From the standpoint of cost and quality control, correct charging is very important. In the hospital, prior to the program of monitoring the completeness of medical charges, the average completeness rate was 94.6%. The causes of incomplete charges included, doctors' failure to order billing, and under or over-charging by nursing staff. In an effort to lessen factors that cause inicomplete charging, some measures to make improvements were implemented. Six hospital units were included. Over a period of one year, the completeness rate increased to 98%. Overall revenres of the hospital also increased. Moreover, staff became more cost conscious, rights of the patients were preserved and auto-charging was implemented by doctors.