The league announced Friday that Voynov's salary no longer will count against the Kings' salary cap.
Voynov's $4.167 million cap hit now may be replaced in the same manner in which players with long-term injuries don't count against the cap.
The Kings had been unable to recall anyone from the minors to replace injured players recently, even forcing them to play with five defensemen at times.
Voynov has been suspended for 14 games since his arrest Oct. 20.
He is due in court Dec. 1 after the Los Angeles County district attorney's office charged him Thursday with abusing his wife.