CO Rev. Stat. §10-16-704(5.5)(a)
(a) Notwithstanding any provision of law, a carrier that provides any benefits with respect to services in an emergency department of a hospital shall cover emergency services:
(I) Without the need for any prior authorization determination;
(II) Regardless of whether the health care provider furnishing emergency services is a participating provider with respect to emergency services;
(III) For services provided out of network;
(IV) Without imposing any administrative requirement or limitation on coverage that is more restrictive than the requirements or limitations that apply to emergency services received from in-network providers; and
(V) With the same cost-sharing requirements as would apply if emergency services were provided in-network.
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