The classification is phenotypical rather than genotypical, i.e. it does not provide codes for medical or scientific purposes.
Note that "0 Not Known" means that the sex of a PERSON has not been recorded. "9 Not Specified" means indeterminate, i.e. unable to be classified as either male or female.
National Codes:
| 0 | Not Known |
| 1 | Male |
| 2 | Female |
| 9 | Not Specified |
This attribute is also known by these names:
| Context | Alias |
|---|---|
| plural | PERSON GENDER CODES |