Group plans do not usually exclude pre-existing conditions from coverage, so read your contract. If it's a small business or you had to get an individual plan because it is a REALLY small business, then it could be an issue. If you have to fill out a health history to obtain coverage, then you have to put it down, it is a medical condition like any other. If you have had insurance cover you for treatment ever, this information is in a central data base that insurers can check, I am pretty sure, just to prevent fraud. If you take a risk and don't report it and your insurance doesn't cover pre-existing conditions for a time, you risk that any treatment you get for almost any condition that could possibly be construed to be related to the depression or side effects from the medications, they will look into it and deny payment, after you have already incurred costs.
