Many international students and newcomers moving to Italy often need a Codice Fiscale very early for administrative procedures such as university enrollment, accommodation contracts, or opening a bank account.
In most cases, the official code is issued by the Agenzia delle Entrate after arrival or during residence permit processing, but sometimes there can be delays depending on the city and appointment availability.
Because the Codice Fiscale is generated based on personal information such as name, surname, date of birth, gender, and place of birth, even small spelling differences can produce a different result. For this reason, understanding how its structure works in advance can help avoid mistakes when filling out forms during the first steps after arrival in Italy.
For reference and testing purposes, this generator helps explain how the expected Codice Fiscale format is created:
https://cfcalcolo.com