Originally posted by rhizobium
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The first three DSDs are solely male conditions - 5-ARD, 17 beta, and PAIS. The fourth would only be significant if it was an XY ovotesticular DSD as no XX ovotesticualr DSD would be considered given the other criteria. This non XX application would apply to the fifth DSD group - genetic disorders of gonadal steroidogenesis.
Note that an XX-male SRY positive is male to different degrees given the SRY gene on one of the X chromosomes - this being the main reason for genetic males not so much the Y chromosomes per-se.
The Q&A and CAS docs were explaining this - no XX would fall under their authority given such criteria.
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