I hear you. I went through this with my sons, especially my second son. It was right when the government monies became available for learning disabled children, and because of my son's high intelligence and boredom, they wanted to label him this so they could get more money. I refused to allow it.

You son would benefit from someone who can help him realize that high intelligence has to be handled differently, that so much that feels "common sense" to him, others don't even know, and that he has to compensate for the others. I had difficulty myself in school as they tested me but never told me about genius thinking and issues and so I still struggled with "school" as a whole!
Don't let them label him, as it will follow him forever.

One way I helped my sons is by buying a computer. Don't laugh, it was back when NO ONE had home computers, and the one I got my hands on was through a friend who was with Radio Shack who had a connection... it had tape programs. But my point is, I had to think outside of the box to find a way to stimulate their craving for suitable advanced knowledge and skills.

Be wary of them wanting to put him into an excelerated program also. What I found with this was the student receives very little "normal coursework" for a year or two, and thus haven't progressed at their own level but now fit into the grade like the rest of the class. Make sure his education includes all the basics and at the level he requires. It might take a tutor, perhaps you can get a middle school student to work with him?

It isn't easy having to constantly advocate during his school years, but well worth it! I have two very advanced sons who now have intensely intelligent successful children. They already know how to work around the status quo of the system.