A comparative study of real hospital costs and INA-CBG rates for stroke in Indonesia

Background: The claim payment method in JKN program uses the prospective Indonesian Case Base Groups (INA-CBG) method, in which the rate has been determined before health services are provided based on the diagnosis code group. This potentially causes a discrepancy in the costs incurred by health facilities. Objective: This systematic review aimed to provide an overview of the comparison of actual hospital costs with the INA-CBG rates of the JKN program for inpatient stroke. Method: The collection method used a PRISMA flowchart on several databases. This systematic review is a comparative study comparing the significance of the average actual direct medical costs with the INA-CBG rates. Result: Cost differences on intracerebral haemorrhage (I619) and unspecified stroke diagnosis (I64) consistently give a negative difference around IDR 110,659 – IDR 8,184,007/patient/episode. Medicine and medical equipment are the most significant components of stroke treatments. Factors that significantly influence direct medical costs are the length of stay (LOS), class of JKN, and age. Conclusion: Cost differences can be influenced by several factors that can affect the direct medical costs of hospitals. The factor that has the most influence on the amount of direct medical cost is LOS.