Yes. Specifically, it means that the lcd complies with the form factor that VESA set out and it's mounting bolt separation distance is 100mm. You just need to buy a wal mounting kit from some accessories company. I can't think of any off the top of my head but I'm sure a serch will turn somehting up. Also, you can use LCD arms.
I guess if you're a do-it-yourselfer, you don't really need to buy a kit. You could just mount some drywall anchors on the wall and make some sort of mounting plate yourself.