Does the new NYS mandate for insured health plan coverage apply to dental insurance issued in New York State?

good question. I don't see a clear answer in the bill or on this website which has FAQ's on it

http://www.ins.state.ny.us/health/S6030_Age29.htm

Here is what was done in CT (where we only have to cover them thru age 25 not 29):

17. Does this change in dependent definition apply only to medical? Would dental, vision, and prescription drug coverage also qualify?

All Connecticut individual and group medical policies are required to follow the new dependent definition. If the dental, vision or prescription drug coverage is combined with the group health benefits in a policy or a rider to a policy, the new dependent definition would also apply. However, if the dental, vision or prescription drug coverage is “free-standing” in a separate policy, these new rules are optional for the health insurer for those benefits.

You might want to contact the insurer or the NY State Insurance Dept. for clarification of NY's position on this.

I see that that NY did not exclude the imputed income on this coverage from NY State Income tax as MA did. CT didn't either.