Epilepsy is one of the most common and dangerous neurological disorders, affecting millions of people around the world every year. Its symptoms are quite subtle and the transition from one phase of the disorder to another can go undetected and end to a life threatening situation, if the patient is not carefully monitored. In this paper we propose a novel health status transition model in epilepsy, as well as an implementation scheme suitable to be used in health telemonitoring systems. This model is able to monitor the patient and detect abnormalities providing a time margin for him/her to take actions and for his/her caregivers to be prepared to help and act. Based on whole model’s transitions information we created a health-caring ontology. Finally, we used Java in order to develop an appropriate decision-making telemonitoring algorithm based on the proposed model.