Table 4.

PHI categories and subcategories for 2016 de-identification annotation. Similar tables appeared in previous publications (Stubbs and Uzuner 2015; Stubbs, Kotfila, and Uzuner 2015)

Category	Subcategory
NAME	PATIENT, DOCTOR, USERNAME
AGE	n/a
DATE	n/a
LOCATION	STREET, ZIP, CITY, STATE, COUNTRY, HOSPITAL, ORGANIZATION, LOCATION-OTHER
CONTACT	EMAIL, FAX, PHONE, URL
ID	SOCIAL SECURITY NUMBER, MEDICAL RECORD NUMBER, HEALTH PLAN NUMBER, ACCOUNT NUMBER, LICENSE NUMBER, VEHICLE ID, DEVICE ID, BIOMETRIC ID, ID NUMBER
PROFESSION	n/a
OTHER	n/a