@anna Italy's legal system only recognizes male and female. But the Italian Constitutional Court ruled this year that non-binary people do, in fact, exist and that they're entitled to the same equal rights. However they also found in the same ruling that you're not currently allowed to register legally with a non-binary gender. The court gave that job to the Italian parliament, but you're not going to see that with the current government.
This article has some details: https://verfassungsblog.de/non-binary-gender-markers-italy/