We are using the SEER/NAACCR codes for Sex/Gender.
http://datadictionary.naaccr.org/default.aspx?c=10#sources
So my initial thought was to map Gender in SNOMED (ID 4135376) then have this point to a custom table with our own codes since none of the standard vocabularies have the terms NAACCR uses for sex such as “Transsexual, natal male”
Does this make sense or is my logic all wrong?