TS, IS, and the US Military
http://aebrain.blogspot.com/2010/12/ts-is-and-us-military.html12/26/10
The problem is in the various subsidiary regulations about "Administrative Discharge". AR 635–200 is the only one that's clear; there, Transsexuality is called out specifically, as a category like sea-sickness that may be cause for separation. But AR 135–175 requires that the medical condition be proven to interfere with effectiveness, or that it be classified as a "personality disorder". It's difficult to see how an Intersex condition could be so classified, though in the ICD-9 anyway, transsexuality is so defined. The other two deal with personality disorders, or medical issues that would require medical, not administrative, discharges, or that would preclude induction if found during the early part of service. At least, that's from a first reading.
