You do have to be a little bit careful on this. The language in a lot of plans excludes work related injuries (i.e., should be covered by workmans comp, whether or not you have workers comp). A lot of small business owners don't have workers comp, so if they get hurt on the job, they may be fighting the insurance company for coverage.
Now, I've never had this situation come up, so I don't know what the eventual outcome would be. I'm guessing if you push, you might get the claim paid, but probably not without a fight.
I know in California, BlueCross offers plans that remove the 'work related' exclusion.
Keep in mind, I'm a P&C guy, a health person can elaborate more......
Dan
Do you know any websites or resources that break down Workman's Compensation regulations/requirements in a state by state guide? Google turned up nothing.......