Availability of data is a leading factor for the development of society. Science and technology improvement contributed to modernization of information transmission and availability systems. All areas of life are covered, including health. As a basic field for society stability it was necessary to determine precisely the organization of every individual step in communication into any health institution. Considering diversity and amount of data, development of unique transmission standard have faced all sorts of problems. However, with the emergence of HL7 and DICOM standards, data became properly structured thus successfully avoiding obstacles to general availability. Demographic data, when enrolling a patient, stay permanently recorded in the information system for the purpose of medical planning and testing with identification of obtained results.Workflows within individual departments and financial management of health institutions also belong to the options of HL7 standard participating in setting basic conditions for everyday work. Enrolling all clinical data in formulated form contributes to assistance in the diagnostic and therapeutic process and it presents key data for medical research. Software platform of complete health data integration is a fundamental precondition for use of artificial intelligence within individual workflow for every clinical department and institution. Furthermore, integration allowed the patient access to primary medical data for the purpose of establishment quality and efficient cooperation. Final purpose of this work is to present primary processes of information exchange through the HL7 standard because of overall improvement in the quality of work within health institutions.