Remove Sex for Clinical Use extension removing this extension is in alignment with the US Core Patient profile (6.1.0) (the extension was in the ballot version for 6.1.0, which is what the At-Home extension was based on, but it was removed through the ballot process) Update guidance make it clear that without the information on the observation the receiver needs to figure out other way to figure out what the correct sex parameter for clinical use is ensure that guidance is clear we are collecting patient.gender and nothing else (and the patient.gender is asserted by the patient) make sure that it is clear that patient.gender is not "gender identity" ensure that guidance is clear that the patient.gender is not necessarily appropriate to use to interpret the observation unless there is a sex parameter for clinical use associate with the observation