Protected Health Information
PHI is any information pertaining to PHI may be information that is recorded electronically, on paper, or orally.
PHI may concern living people or dead people (referred to in the law as "decedents").
PHI does not include de-identified information or biological tissue with no accompanying information, such as an accession number or code number, that may be linked to an identifier.

Protected Health Information
There are three categories of health information. The authorization requirements for use are different for each.
requirements for authorization
The HIPAA regulations use the term "authorization" to describe the process through which a patient allows researchers to access protected health information. The authorization for disclosure and use of protected health information may be combined with the consent form that a research subject signs before agreeing to be in a study. It may also be a separate form.
In either case, the information must include: Blanket authorizations for research to be conducted in the future are not permitted. Each new use requires a specific authorization.