Ad Hoc Query - cost assignment

Hi Experts,

I'm trying to pull the contents of 'Cost Assignment' field i.e manually entered cost centre which is available as a button on infotype 2002 & 2003 screens.

In an Ad-hoc Query, it is not available as a field in any of the standard infosets.

Is there a simple way of adding in the IT2003 cost assignment field?

Please help.

Thanks,

Arpita