Islam DOES NOT recognize any such 'disorders'. If someone has a defect, they are required to choose the gender that is most pertinent for their condition. If they are equally possible, then on or the other gender must be chosen and the rest of the life is spent accordingly. They are either a male or a female. No such thing as transgender.
Transgender is an 'innovation' that allows for 'gender fluidity', and arbitrary selection of gender based on personal choice rather than physical ability. This is a disgusting practice. In Islam, if someone is unable to fulfil the marital right of their partner, it is HARAM for them to marry at all. Whereas 'transgender' allows for homosexual intercourse.
This is a total mockery of Islam and even basic human decency.