<![CDATA[This study stems from concerns regarding normative changes to inpatient care classifications introduced by Presidential Regulation No. 59 of 2024—which reforms Presidential Regulation No. 82/2018—within the framework of Law No. 40 of 2004 on the National Social Security System (SJSN). It focuses on assessing whether the Standard Inpatient Class (KRIS) aligns, both legally and operationally, with the principles of equity and sustainability underpinning the National Health Insurance (JKN) scheme. The research aims to (1) map and interpret the KRIS regulations set forth in Presidential Regulation 59/2024 and (2) evaluate the alignment of KRIS implementation with SJSN principles. A normative legal research (doctrinal legal research) methodology was employed, utilizing statutory, legal-hermeneutic, and vertical-horizontal harmonization analysis approaches, alongside qualitative content analysis of legal and policy documents (2015–2025). The findings indicate that, doctrinally, Presidential Regulation 59/2024 establishes a legal framework coherent with SJSN objectives; however, substantive alignment depends on the finalization of implementing regulations, adjustments to tariffs and premiums, and hospital operational readiness. Data reveal inconsistencies in meeting the 12 KRIS criteria and a potential for service fragmentation arising from "top-up" mechanisms. The study concludes that while KRIS supports equity *de jure*, its achievement remains conditional *de facto*. Consequently, it recommends finalizing derivative regulations, adjusting financing structures, providing transition support for regional hospitals, and adopting an H-E-I (Law–Equity–Implementation) evaluative framework alongside further empirical study.]]>
