42 CFR Part 2- Definitions
100

name, address, Social Security number, fingerprints, photograph, or similar information by which the identity of a patient can be determined with reasonable accuracy either directly or by reference to other information.

What is Patient Identifying Information (PII)

200

any record that is not rendered unusable, unreadable, or indecipherable to unauthorized persons through the use of technology or methodology specified by the Secretary of HHS

What is an unsecured record 

300

a federally assisted program that holds itself out as providing and provides substance use disorder diagnosis, treatment, or referral to treatment

What is a Part 2 Program

400

Any information, whether recorded or not, created by, received by, or acquired by a part 2 program relating to a patient (e.g., diagnosis, treatment, and referral for treatment information, billing information, emails, voice mails, and texts), and including patient identifying information. 

What is a record

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