Attorney William Portanova entered the misdemeanor plea Monday in Sacramento County Superior Court on behalf of Nocioni, who was not present.
Nocioni was arrested about 2 a.m. Nov. 5 when a police officer noticed his car weaving in downtown Sacramento, hours after the Kings had lost a home game to the Atlanta Hawks.
Portanova says his client wants to "take his medicine and move on."
As part of his sentence, Nocioni will serve two days in a work program operated by the Sacramento County Sheriff's Department. He also must complete a three-month alcohol class, pay a $480 fine and court penalties and serve three years' probation.