Korean resource-based relative value scale (RBRVS) was developed first in 1997 for the alternative of the traditional Korean fee-for-service system. The knowledge about the RBRVS-based fee schedule is necessary to understand the physician payment system of Korean medical insurance. Still now, it is considered that a few more issues should be modified for the most balanced and rational fee schedule in specific situation of Korea. In this article, we analyzed the current Korean medical insurance fee schedule, especially the RBRVS related to rheumatic diseases. And we introduced the guide of the medical service for rheumatic diseases in the view of approved limit under the medical insurance. In addition, the new optional medical service system, which was operated recently, was also evaluated briefly. It is suggested that the medical insurance fee schedule be modified to more acceptable and reasonable one for the best medical services. For that purpose, it is necessary for medical committee and its members to make an efforts continuously on the basis of the great insights of the current fee schedule of Korean medical insurance.