Personal identifier

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Personal Identifiers (PID) are a subset of personally identifiable information (PII) data elements, which identify a unique individual and can permit another person to “assume” that individual's identity without their knowledge or consent.[1]

This can occur when PID data elements are used in any of these ways:

  1. Alone
  2. Combined with a person's name
  3. Combined with other PID data elements
  4. Combined with other PII

Examples of PID[edit]

Privately issued ID credentials[edit]

  • Benefit plan participation number
  • Private health care authorization, access, or identification number

Transactional financial account numbers[edit]

Biometric identifiers[edit]

Health or medical information[edit]

  • National Health certificate number

Electronic identification credentials[edit]

Full Date of Birth[edit]

  • Month, day and year

European-defined sensitive data[edit]

Treated as PID globally, not just for citizens of the EU

See also[edit]


  1. ^ "Guide to Identifying Personally Identifiable Information (PII)". 2017-02-14. Retrieved 2020-12-06.