Adding a letter to the beginning of multiple file names

I am able to replace the first letter of remote file names using mv /dirpath/Z*.* I*.* in a script i.e. from ( ZQNPQ0001.203 to IQNPQ0001.203) but what I want to do is add the letter i.e. ( ZQNPQ0001.203 to IZQNPQ0001.203) and not replace it.
Is there a way to do this? :?

No.