A system for classification code selection is provided. In some embodiments, the system receives a geographic location indicator associated with a plurality of geographic location-based rules stored in a database. The system monitors a user input interface of an interactive user display for a user input string that includes a minimum number of characters. A suggestion request may be generated to retrieve a data set from the database that matches the geographic location indicator and the user input string based on determining that the user input string includes at least the minimum number of characters. The data set received in response to the suggestion request may be formatted as a list including one or more entries, where each of the entries has a numeric classification code and a corresponding description. The list may be output on the interactive user display for selection and further processing.