If it were me and my child, I would make the appointment and follow through with it regardless of any progress in growth he makes in the mean time.
I am only 5' tall. At every pediatric appointment my mother would be told that if I hadn't grown 1/4 of an inch we would have to consult a specialist. This was long before I showed signs of CD (that happened at 13), but who knows if I might have gotten a few more inches if such a wait and see approach hadn't been taken. It would be nice not to always be the smallest person in the room.
CD 20 years officially, 30 unofficially. 3 resections '93, '95 '97
Managing with strict low residue diet, keeping symptoms to a minimum. All test show small amount of ulceration, still have occasional blockages. But still have a great time with my 2 daughters and husband!
Prednisone, 6MP,Prevacid, B12 shots, Bentyl, Xifaxan.....