See this really long link?
It will change history. You should look at it.
The Diagnostic and Statistical Manual of Mental Disorders (DSM), will determine access to care for gender-variant people for years to come, and it will also significantly impact societal perceptions of gender-variance.
Take a moment and read through it. Your comments on the page or on this blog will be noted in discussions regarding the DSM-5 as it is finalized.
Still not sure what the DSM is? All-knowing Wikipeda gods got you covered.