Self-care of patients with chronic noncommunicable diseases is an essential component of contemporary healthcare. The purpose of this paper is to present a novel self-care process model and place it in the broader context of professional care. The extended Event-driven Process Chain approach to process modelling was used, focusing on a detailed overview of sequences of events, connections and activities and other elements/building blocks. A self-care process model was designed. The model is divided into two parts. The first part represents the self-care process when patients are able to manage their symptoms and be independent. The second part includes the process when patients are unable to perform self-care and/or need professional support. By identifying the essential elements of this process and incorporating them into the patients' care process, we can ensure that professional support for self-care creates a dynamic balance in the patients' ecosystems. Patients with chronic noncommunicable diseases need to make timely decisions about individual aspects of their health and seek professional help. In this way, an optimal level of health and well-being of patients can be achieved. Focusing on the patients' self-care process could also reduce treatment costs and improve the quality of life of patients. The novel designed model of the process of self-care, with all its essential elements, can be supported by digital technology, especially in the decision-making process and needs to become an important part of healthcare and long-term care systems.