Freddy,
Your question has been discussed at length on this forum in the past. The most notable posts have come from MTD Sr. and Jurassic Referee.
There was an old interp from the NFHS stating that disconcertion is always a violation, and may also constitute a technical foul, but it does not have to be both.
Here it is as posted in another thread by JR:
POE #2 in the 2001/02 rule book---
"The committee emphasizes that disconcertion is a violation and may result in a substitute throw. If persistent or deemed unsporting, the TEAM/player may also be penalized with a technical foul."
Disconcertion from bench