By Katie Kerwin McCrimmon Health insurance companies in Colorado can no longer discriminate against people who are gay, lesbian, bisexual or transgender. Colorado is the third state to prohibit discrimination in health coverage. California and Oregon have barred the practice along with the District of Columbia. The federal Affordable Care Act calls for equity in LGBT health care, but very few states have taken action thus far to codify these rights. Colorados Division of Insurance issued a bulletin last week that outlines the new rules. It states that health plans in Colorado can no longer: Charge LGBT people higher rates…