No flames but you commented on my post point blank so I am going to reply.
To the first part, if an employer really didn't want the info they could #1, not ask for it in the first place or #2, ask that it be sent directly to whomever it is that is collecting the info. The fact that the OP seems to feel this is a case of illegally prying into his/her personal info by misrepresenting the reason for the form by using one with "Workman's Comp" stamped on it seems to indicate this company may not be ethical. Further, lots of things are illgal and unethical but companys still do it all the time. What about ENRON, Arthur Anderson? If these big companies break the rules why assume little ones would be any less inclined to do so?
There is nothing fraudulent about being vague, evasive or open-ended. It is only fraud if you make a precises false statement by answering No when it is in fact a Yes. If the direct question is "are you or have you ever been diagnosed or treated for high blood pressure?" that is pretty much a no brainer yes or no. However, if the question was stated, "Do you have a heart condition?", well high blood pressure isn't exactly a heart condition is it, even though some people might believe it is? Since it's actually a vascular condition that may possibly lead to heart trouble, but not heart trouble yet, a person could/should say no. In this country we have an entire industry built upon implying things that aren't true without lying and it is called marketing. Regular people are as protected by those laws as industry.
I for one will not lie, but I will not divulge my personal information unless I am legally bound to do so and it says so in writing that I have no choice. Anyone who comes along and asks without proving to me I MUST be forthcoming deserves whatever they get... and they are going to get vague & evasive open ended answers.