Versions of Iowa Code 135B.12 - Confidentiality on LawServer 2024 Iowa Code 135B.12 – Confidentiality 2023 Iowa Code 135B.12 – Confidentiality 2022 Iowa Code 135B.12 – Confidentiality 2020 Iowa Code 135B.12 – Confidentiality 2018 Iowa Code 135B.12 – Confidentiality 2016 Iowa Code 135B.12 – Confidentiality 2014 Iowa Code 135B.12 – Confidentiality. 2009 Iowa Code 135B.12 – Confidentiality