Yes, VOIDED is a Scrabble word!

Letter values in Scrabble US: V 4, O 1, I 1, D 2, E 1, D 2.

Is it a valid word?

VOIDED is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

declare invalid
clear (a room, house, place) of occupants or empty or clear (a place or receptacle) of something
take away the legal force of or render ineffective
excrete or discharge from the body