Not by Blish or Lawrence. There's Alan Dean Foster's adaptation of "Mudd's Passion," of course. Gold Key's ST comic featured Mudd in its final issue in 1979. There were Harry Mudd stories in both volumes of DC's TOS comic, the first by Len Wein and the second by Howard Weinstein. There's the 1997 novel Mudd in Your Eye by Jerry Oltion. And the Star Trek 25th Anniversary and Starfleet Academy computer games each featured Mudd in one of their storylines.
OMG. I've got some catching up to do.