Background: The quality policy for hospitals enrolled in 2009 by the Flemish government, is based on a ‘Quality-of-Care Triad’ consisting of accreditation, inspection and public reporting of quality indicators. Since 2021, an accreditation label no longer replaces governmental quality system inspection in Flanders. Today, hospitals have the opportunity to build their own quality management system, but questions are raised on the development of a sustainable one. To address this gap in existing research, we aimed to develop a conceptual model towards sustainable, integrated quality management and to implement this model in healthcare organisations. Methods: A multi-methods approach in co-design with 19 healthcare organisations is used to develop a conceptual model. Development phases based on literature and multistakeholder feedback are followed by implementation phases in a convenience sample of 19 organisations (living labs) and by validation of the models based on their recommendations. Results: Flanders Quality Model (FlaQuM) towards sustainable, integrated quality of care constitutes 1) a vision model, 2) a co-creation roadmap and 3) a learning consortium of livings labs. For the vision model, a validated measurement tool, the FlaQuM Quickscan, was developed to measure quality experiences from a multistakeholder perspective (patients and kin, professionals and primary care) and ensures that organisation’s quality vision is rethought from an integrated, multidimensional approach. The co-creation roadmap guides organisations to build their quality management system by focusing on six drivers and 19 buildings blocks. Organisation’s maturity in those drivers and building blocks can be mapped using two tools: the FlaQuM Maturity matrix and FlaQuM Co-creation scan. Those are developed in co-design by conducting 20 focus groups with 79 content experts. Every 18 months, the FlaQuM Quickscan, FlaQuM Maturity matrix and FlaQuM Co-creation scan will be disseminated in the living labs and results will be fed back in ...