i need a radio code ?

I have changed the battery on my peugeot 406 (due to it dying and the car not starting every morning) and now unfortunately the radio has lost its code. I have now been driving round for the past 3 weeks without and its driving me mad!!

Does anyone have the code please for

Model No: 22dc594\65b
Serial No: phapifw1003277
prod no:fd 0098191003277
thank you