Protected Health Information (PHI) is any information about health status, provision of health care, or payment for health care that can be linked to a specific individual.
The following is a general list of items that are considered PHI
Names
All geographical identifiers smaller than a state, except for the initial three digits of a zip code if, according to the current publicly available data from the Bureau of the Census: the geographic unit formed by combining all zip codes with the same three initial digits contains more than 20,000 people; and the initial three digits of a zip code for all such geographic units containing 20,000 or fewer people is changed to 000
Dates (other than year) directly related to an individual
Phone numbers
Fax numbers
Email addresses
Social Security numbers
Medical record numbers
Health insurance beneficiary numbers
Account numbers
Certificate/license numbers
Vehicle identifiers and serial numbers, including license plate numbers
Device identifiers and serial numbers
Web Uniform Resource Locators (URLs)
Internet Protocol (IP) address numbers
Biometric identifiers, including finger, retinal and voice prints
Full face photographic images and any comparable images
Any other unique identifying number, characteristic, or code except the unique code assigned by the investigator to code the data