Minimum Necessary Standard

Section 164.502(b) states the rule plainly: when using or disclosing PHI, or requesting it from another covered entity or business associate, you must make reasonable efforts to limit the information to the minimum necessary to accomplish the intended purpose. In day-to-day terms it means role-based access (front-desk staff do not need the full clinical chart) and sharing only the slice of a record a request actually needs.

The standard has important carve-outs. It does not apply to disclosures to or requests by a provider for treatment, to disclosures to the individual who is the subject of the information, to uses or disclosures made pursuant to a valid authorization, to disclosures required for compliance with the transaction rules, to disclosures to HHS for enforcement, or where otherwise required by law. Those exceptions are why a treating specialist can receive the full relevant record.

Minimum necessary is where the Privacy Rule meets your actual workflows and access controls, so it shows up throughout the binder: in your policies, in how you configure EHR permissions, and in how you fulfill records requests. It pairs closely with the Security Rule’s access-control expectations for ePHI.