准备去意大利玩两周, 签证的问题，谢谢！

准备去意大利两周。美国绿卡，需要申请申根签证。在Houston的意大利使馆网站看到这样一段话：

HEALTH INSURANCE POLICY:…………In order to prove you are covered you need to provide a letter from your insurance carrier confirming coverage in the Schengen countries (not only Italy) for the minimum amount provided by the law (Euro 30,000.00/$50,000.00).

在我用的United Healthcare上找不到是否包括这一项。不知道该怎么办了？ 谢谢回复！