Code indicating the date format, time format, or date and time format

Expression of a date, a time, or range of dates, times or dates and times

Code indicating the sex of the individual

Code defining the marital status of a person

Code indicating the racial or ethnic background of a person; it is normally self-reported; Under certain circumstances this information is collected for United States Government statistical purposes

Code indicating citizenship status

Code identifying the country

Code indicating the basis of verification

Numeric value of quantity