The telematics infrastructure (TI) is the digital network of the German healthcare system. The term telematics is composed of the terms’ telecommunications and information technology. With the IT infrastructure used for this purpose, the TI forms a closed network that is intended to enable the digital and secure exchange of health-related data between all players in the healthcare system while complying with the highest data protection standards. It also provides the platform for digital health applications such as the eRezept (e-prescription) and the eAU (electronic certificate of incapacity for work). Connection to the TI has been implemented gradually since 2018 and is a legal requirement for all players in the healthcare system.