Only some of the available plans will cover pre-existing medical conditions such as diabetes, high blood pressure, heart conditions, etc. Other policies, while they do cover stable pre-existing medical conditions, use strict eligibility questions to screen out applicants (for example, no coverage available if you use an ICD (pacemaker), oral steroids for lung conditions, diagnosis of stroke, blood clots, congestive heart failure or heart murmur in past 12 months, etc.).
