There are no standard rules for what goes in box 14 on a W-2, and no standard codes or abbreviations. The employer can put pretty much anything they want in there. NYSBN is not a common box 14 entry. Ask your employer what it is, or just select "Other (not classified)" as the category.
TurboTax Expert Assist
Get answers to all your tax questions
Our experts are available on-demand, no appointment needed. Get help all year long with TurboTax Expert Assist.