On December 19, 2022, the U.S. Department of Health and Human Services (“HHS”) through the Centers for Medicare & Medicaid Services (“CMS”) issued a proposed rule to adopt standards for certain electronic health transactions.  Specifically, the proposed rule would adopt standards for health care attachment transactions (e.g., medical charts, x-rays, provider notes) and electronic signatures to be used in conjunction with health care attachments, and modify the standard for referral certification and authorization transaction.  The proposed rule would apply to entities regulated by the Health Insurance Portability and Accountability Act of 1996, as amended, and its implementing regulations (collectively, “HIPAA”), and would implement certain requirements of the Administrative Simplification subtitle of HIPAA and the Patient Protection and Affordable Care Act (“ACA”) that require the Secretary of HHS to adopt and update standards for electronic health transactions, code sets, unique identifiers, as well as the electronic exchange for health information.