The home address of the patient is mandatory to be completed with the address of residence in Poland. The postal code can be entered both with and without a dash (then the system will automatically change its format by adding a dash between the second and third digits). After entering the correct postal code, the post office, country, and province are automatically filled in. Moreover, if there is one commune for a given postal code, the name of the commune and TERYT are also filled in automatically. Moreover, if for a given postal code and a given city there is one TERYT of the city, then it is also filled in automatically. Moreover, if there is one TERYT street for a given postal code, city and street, then it is also filled in automatically. Hints are displayed when entering the city name. When entering a commune name, hints are also displayed, and when selecting a commune from the list of hints, TERYT is filled in automatically. When entering the name of the locality in the field "TERYT of the city" (the field TERYT must be filled in beforehand), a list of hints will be displayed, and after selecting an item from the list of suggestions TERYT of the city is filled in automatically. When entering the street name in the field "TERYT the street" (the field TERYT of the town must be previously filled in), a list of hints is displayed, and after selecting an item from the list of suggestions TERYT the street is filled in automatically.