Turner Syndrome Support Group
Turner syndrome encompasses a number of chromosomal abnormalities, of which monosomy X, is the most common. It occurs in 1 out of every 2,500 female births. Instead of the normal XX sex chromosomes for a female, only one X chromosome is present and fully functional. In Turner syndrome, female sexual characteristics are present but underdeveloped.

You can appeal the decision:
Phone them and ask them for their policy on prescription drug re-embursments and co-pays.
Also ask them for their policies previsions on anything pertaining to growth hormone treatments.
And policy previsions on endochronology also on obstetrics and gynecology.
Demand that they mail you each of these.
You will need to read through all of that, and you may find something of a loop hole, something regarding ts specifically even...
...and if you do find something specific which makes this new decision of theirs illogical, you can use that as basis for appeal.
Or move to MA.