TY - JOUR AU - B. E. Fries AU - G. Heckman AU - J. P. Hirdes AU - H. Finne-Soveri AU - A. Hirdes AU - Y. J. S. Mashalla AU - S. L. Stewart A1 - AB - Fragmented healthcare systems worldwide struggle to support patient populations with complex health and social needs. System integration requires a standardized clinical health information system to better care for these populations. This review describes how interRAI systems evolved into powerful solutions to support healthcare system integration. In response to a care quality crisis in long-term care homes in the United States, Congress mandated a standardized Minimum Data Set (MDS) from which multiple outputs were derived to support care planning, care quality, and case-mix assessment. This work drew international attention, leading to the creation of interRAI. Three decades of extensive international research, stakeholder engagement, and implementation have led to the creation of comprehensive cross-sectoral assessment systems for diverse populations, including older adults, mental health patients, and children and youth. The interRAI assessment systems, widely used in Canada and internationally, constitute comprehensive clinical assessment systems capable of supporting health system integration. AD - University of Michigan, Ann Arbor, Michigan, United States of America. RINGGOLD: 1259; Lawson Research Institute, London, Ontario, Canada.; Western University, London, Ontario, Canada. RINGGOLD: 6221; University of Waterloo, Waterloo, Ontario, Canada. RINGGOLD: 8430; Finnish Institute for Health and Welfare, Helsinki, Finland. RINGGOLD: 3837; Federal University of Rio Grande (FURG), Porto Alegre, Brazil. RINGGOLD: 28124; Hubert Kairuki Memorial University, Dar es Salaam, Tanzania. RINGGOLD: 108082 AN - 41145122 BT - Healthc Manage Forum C5 - Healthcare Disparities CP - 2 DA - Mar DO - 10.1177/08404704251389190 DP - NLM ET - 20251027 IS - 2 JF - Healthc Manage Forum LA - eng N2 - Fragmented healthcare systems worldwide struggle to support patient populations with complex health and social needs. System integration requires a standardized clinical health information system to better care for these populations. This review describes how interRAI systems evolved into powerful solutions to support healthcare system integration. In response to a care quality crisis in long-term care homes in the United States, Congress mandated a standardized Minimum Data Set (MDS) from which multiple outputs were derived to support care planning, care quality, and case-mix assessment. This work drew international attention, leading to the creation of interRAI. Three decades of extensive international research, stakeholder engagement, and implementation have led to the creation of comprehensive cross-sectoral assessment systems for diverse populations, including older adults, mental health patients, and children and youth. The interRAI assessment systems, widely used in Canada and internationally, constitute comprehensive clinical assessment systems capable of supporting health system integration. PY - 2026 SN - 0840-4704 (Print); 0840-4704 SP - 75 EP - 84+ ST - Born from Crisis: The Evolution of interRAI and Its Relevance to Today's Healthcare Challenges T1 - Born from Crisis: The Evolution of interRAI and Its Relevance to Today's Healthcare Challenges T2 - Healthc Manage Forum TI - Born from Crisis: The Evolution of interRAI and Its Relevance to Today's Healthcare Challenges U1 - Healthcare Disparities U3 - 10.1177/08404704251389190 VL - 39 VO - 0840-4704 (Print); 0840-4704 Y1 - 2026 ER -