Casali, M. 2021. Exploring the boundaries and ontology of Psychiatric Disorders (PDs) using the Homeostatic Property Cluster (HPC) model: A previous version of this paper has been mistakenly published on April 19, 2021. Please refer to the current revised version. Lato Sensu: Revue de la Société de philosophie des sciences. 8, 2 (avr. 2021), 15–31. DOI:https://doi.org/10.20416/LSRSPS.V8I2.3.