As others have commented, yes you can by exporting as a CSV and then importing that into Bitwarden. Even the notes were successfully imported.
During this process, I also cleaned up my vault (some accounts had very long URLs saved as opposed to the base domain; e.g. https://www.foobar.com/signup&method=blah... => https://www.foobar.com) and discovered that a bunch of my entries had either empty usernames or empty passwords.
