Which privacy principle requires limiting access to PHI to the minimum necessary?

• A. The Minimum Necessary Standard under HIPAA.
• B. The Maximum Access Protocol.
• C. The Data Minimization Rule of the ACA.
• D. The Need-to-Know Principle.

Answer: (A)

The main idea being tested is limiting access to protected health information to the minimum amount needed to accomplish the task. In the HIPAA Privacy Rule, this is known as the Minimum Necessary Standard. It requires covered entities and business associates to implement policies and procedures that restrict uses and disclosures of PHI to only what is essential for the purpose at hand. Practically, that means granting access based on role, using least-privilege access controls, and only exposing the specific data fields required for a job function.

There are important exceptions to this rule, such as disclosures for treatment, or disclosures authorized by the patient or required by law. The essence is to reduce unnecessary exposure of PHI while still enabling necessary workflows like billing, care coordination, and legal compliance.

Other phrases mentioned aren’t the formal HIPAA standard. While the idea of “need to know” aligns with limiting access, the recognized term in HIPAA is the Minimum Necessary Standard. So the best answer points to the specific HIPAA principle that governs how little PHI should be accessed or disclosed to accomplish a given purpose.