For many clinical uses limiting sex to male or female (or specified) makes sense – drugs are dosed for, or approriate for males and females differently; radiation shielding must be placed differently; baseline lab results may differ; surgery will depend on specific organs. However, in psychiatry and similar situations, might there be a need for more nuanced SFCU? I understand the need for a small selection of SFCU values to drive decision making, and that using values other than M/F in contexts where the only reasonable SFCUs are M/F will cause confusion; however, please consider whether the SFCU valueset should be expanded

(Comment 7 - imported by: Ron G. Parker)