The Electronic Medical Record (EMR) is the essential component of an integrated computer-based medical setting since it is used to store and manage patient health information. The purpose of this paper is to present a real application of a concept-based EMR for the heart failure patient management. The role of ontologies to allow a more effective data and knowledge sharing as wellas to model and manage clinical information in a flexible and powerful way is widely recognized. Our approach is abased on openEHR ontologies that allow us to build an interoperable, future-proof clinical information system. This work is part of the e-Heart Failure project funded by the autonomous Provicne of Trento and started in June 2002