The Healthcare Record has been used in a “Before and After” situation to improve patient care. The main paradigm of the modern Health Care is changing towards pervasive person-centric care including prevention and home care. Medical compunetics is a very important applicative field for improving the interoperability and the quality of the healthcare information system, especially in the current climate with the empowerment patients. The success depends on the choice of the Clinical Events Classification for structuring the span of clinical information. For the purposes of universalizing medical electronic data-bases, it is very important to organize the data regarding Clinical Events in such manner that it would be possible to use this information-structure in different fields of Clinical Practice: e.g., for the creation of the diagnostic and drug-assistance protocols, for the evaluation of the quality of drug prescribing, and for communication with patients as well. For this purpose all Clinical Events were divided to 5 classes. This Paper will describe a “Before and After” situation consequent upon the introduction of the Clinical Events Classification and the introduction of Protocols for drug-prescribing. Use of the Protocol brought about a 50% reduction in mortality.