Kanye West will NOT be prosecuted for beating up a guy in the waiting room of a Beverely Hills chiropractor ... TMZ has learned.
The L.A. County D.A. has REJECTED the case. As for why ... the D.A. gave several reasons:
-- A civil compromise has been reached. TMZ broke the story, Kanye agreed to pay more than $250,000 to the 18-year-old.
-- The victim was not hurt. The D.A. says "No significant injuries were documented."
-- The victim became uncooperative after the civil compromise, and would not speak with prosecutors.
The conclusion of the D.A. ... "Prosecution is accordingly declined due to Victim unavailability."
One interesting thing -- in the rejection, the D.A. notes Kim and Kanye both alleged the 18-year-old used a racial epithet.