||July 15, 2013 18:11
I think this you can get better answers if you post your question under ICEM-CFD or StarCCM+ forums, and not the general CFD forum.
Anyways, you can probably export your geometry from ICEM in a format that star can read. I know, for sure, that star can import parasolid files, and you most probably are able to export your geometry in parasolid format from ICEM (not 100% sure about this). But there are also other formats, like stl, iges, ... popular enough formats that both packages might support.