Is viatical a word in the Scrabble Dictionary

Yes, viatical is playable

...and is worth 16 points.

Found in the following dictionaries

Enable (Words with friends)
SOWPODS (Collins Scrabble Words)
OTCWL2014 (NASPA Word List 2014)
TWL06 (NASPA List 2006)

"Viatical" Definition

adjective

Of or relating to a contractual arrangement in which a business buys life insurance policies from terminally ill patients for a percentage of the face value: a viatical settlement.
Of or relating to traveling, a road, or a way.