1 The following identifiers of the individual or of relatives, employers, or household members of the individual must be removed: (1) Names; (2) all geographic subdivisions smaller than a state, except for the initial three digits of the ZIP code if the geographic unit formed by combining all ZIP codes with the same three initial digits contains more than 20,000 people; (3) all elements of dates except year, and all ages over 89 or elements indicative of such age; (4) telephone numbers; (5) fax numbers; (6) email addresses; (7) social security numbers; (8) medical record numbers; (9) health plan beneficiary numbers; (10) account numbers; (11) certificate or license numbers; (12) vehicle identifiers and license plate numbers; (13) device identifiers and serial numbers; (14) URLs; (15) IP addresses; (16) biometric identifiers; (17) full-face photographs and any comparable images; (18) any other unique, identifying characteristic or code, except as permitted for re-identification in the Privacy Rule.