Which of the following established the Minimum Necessary rule?

The Minimum Necessary rule is established under the Privacy Rule, which is a key component of HIPAA (Health Insurance Portability and Accountability Act). This rule is designed to ensure that any use or disclosure of Protected Health Information (PHI) is limited to the minimum amount of information necessary to accomplish the intended purpose.

The Privacy Rule sets forth standards for the protection of individuals' medical records and other personal health information, thereby ensuring privacy and confidentiality. The Minimum Necessary standard emphasizes the importance of limiting access to PHI only to those individuals who need it for legitimate purposes, whether it be for treatment, payment, or healthcare operations. This principle is essential in reducing the risk of unauthorized disclosures and protecting patient privacy.

While other options relate to health information and privacy in different ways, they do not specifically define the Minimum Necessary rule. The Security Rule focuses on safeguarding electronic PHI, the HIPAA Act encompasses the overall legislation which includes the Privacy Rule, and the HITECH Act mainly addresses technology and modernizes the HIPAA framework but does not directly establish the Minimum Necessary standard.