The purpose of this study is to analyze the information system as one of the factors supporting the health services provided. Provide computerized services that are used to collect patient information in medical records for making treatment decisions for patients. The research method with a quantitative approach, in the form of informant interviews, surveys and literature study. The research time was from January - March 2020. The completeness of the medical record files was 66.4% and 33.6% incomplete, while the BPJS claim approval was 60.8% and 39.2%.2% were not approved. The conclusion is that there is a relationship between the completeness of medical records and the approval of BPJS claims. It is highly recommended that there is a high awareness for medical record officers, nurses, and doctors to complete medical record files properly, assisted by computerized records that are easy to understand and operate.