Versions of Indiana Code 27-8-5-31.5. Insurer removing prescription drug from formulary or changing cost sharing; written notice and appeal process on LawServer 2023 Indiana Code 27-8-5-31.5. Insurer removing prescription drug from formulary or changing cost sharing; written notice and appeal process 2022 Indiana Code 27-8-5-31.5. Insurer removing prescription drug from formulary or changing cost sharing; written notice and appeal process 2021 Indiana Code 27-8-5-31.5. Insurer removing prescription drug from formulary or changing cost sharing; written notice and appeal process 2020 Indiana Code 27-8-5-31.5. Insurer removing prescription drug from formulary or changing cost sharing; written notice and appeal process