Wondering about Legal Sex of X and if there are any standards. 21 states, and soon Passports, have Legal Sex of X as an option. Specifically for the 270/271 transactions.
Patient indicates Legal Sex of X.
The current 5010 TR3s for the 270/271 transactions support the below gender code sets:
270B1_2100C_DMG 3 and 270B1_2100D_DMG03
F - Female
M - Male
271B1_2100C_DMG03 and 271B1_2100D_DMG03
F - Female
M - Male
U - Unknown
See related RFI 2311
If this is functionality that is needed for your business and is not currently supported in a published TR3, submit an X12 maintenance request at https://x12.org/resources/forms/maintenance-requests.
Research background
The 5010 X12 base standard has six values to report gender. The individual TR3 guides determine if a gender element is needed and if so, which values may be used for the specific transaction.
Base Standard Values:
A Not Provided
B Not Applicable
F Female
M Male
U Unknown
N Non-sexed Gender is not known because observation or examination for such was not recorded or requested by the protocol
X Unsexable Gender could not be determined because of ambiguity in external or internal genitalia
Currently some TR3s use F and M, others use F, M, and U, other TR3s do not report gender.