CO Rev. Stat. §10-16-112.5(3)(a)(II)

(a)Except as provided in subsection (3)(b) of this section, a prior authorization request is deemed granted if a carrier or organization fails to:

(II) For a prior authorization request for urgent health care services:

(A) Notify the provider and covered person, within two business days but not longer than seventy-two hours after receipt of the request, that the request is approved, denied, or incomplete, and, if incomplete, indicate the specific additional information, consistent with criteria posted pursuant to subsection (2)(a) of this section, that is required to process the request; or

(B) Notify the provider and covered person, within two business days but not longer than seventy-two hours after receiving the additional information required by the carrier or organization pursuant to subsection (3)(a)(II)(A) of this section, that the request is approved or denied.