| AA | Accurate Date of birth, Accurate Time of Birth |
| AU | Accurate Date of birth, Unconfirmed Time of Birth |
| AC | Accurate Date of birth, Corrected Time of Birth |
| UU | Unconfirmed Date of birth, Unconfirmed Time of Birth |
| AX | Accurate Date of birth, Unknown Time of Birth |
| XX | Dirty Data (No Confirmation on Date of Birth or Time of Birth) |