CO Rev. Stat. §10-16-704(4.5)(L)(I)

(L)(I) Any adjustment made by the carrier that recovers carrier overpayments to a provider shall include a written notice to the provider and shall contain a complete and specific explanation of such adjustments and information regarding the carrier’s provider dispute resolution procedures pursuant to section 10-16-705(13) .  Such notice shall be made to both the provider and the enrollee to the extent that the adjustment will result in enrollee liability.  Notice to the enrollee required by this paragraph (l) shall include information regarding the carrier’s enrollee appeals procedure rather than the carrier’s provider dispute resolution procedures.