Colorado law requires all health carriers to report the number and outcome of their second-level internal appeals to the Colorado Division of Insurance by February 1st of each year even if the number of appeals is zero. The data requirements are in Colorado Insurance Bulletin
B-4.20 Annual Report of Second-Level Internal and Independent External Review Appeals, pursuant to 10-16-113.7, C.R.S. and Colorado Insurance Regulation 4-2-17. This survey is due February 1, 2013.