The World Professional Association for Transgender Health (WPATH) is an international, interdisciplinary, professional association devoted to the understanding and treatment of individuals with Gender Dysphoria (GD). Founded in 1979, and currently with over 1500 medical, mental health, social scientist, and legal professional members, all of whom are engaged in clinical practice and/or research that affects the lives of transgender and transsexual people, WPATH is the oldest professional association in the world that continuously has been concerned with this clinical specialty.
Recognized by the AMA as "leading international, interdisciplinary professional organization devoted to the understanding and treatment of gender identity disorders," WPATH issues the widely followed Standards of Care for the Health of Transsexual, Transgender, and Gender Nonconforming People.
"The WPATH Board of Directors urges health insurance carriers and healthcare providers in the United States to eliminate transgender or transsexual exclusions from their policy documents and medical guidelines, and to provide coverage for transgender patients; also to include in their policy documents and medical guidelines the medically prescribed sex reassignment or gender affirming/confirming services necessary for subscribers’ treatment and well-being; and to ensure that ongoing healthcare, both routine and specialized, is readily accessible and affordable to all their subscribers on an equal basis."
World Professional Association for Transgender Health, Position Statement on Medical Necessity of Treatment, Sex Reassignment, and Insurance Coverage in the U.S.A., http://www.wpath.org/site_page.cfm?pk_association_webpage_menu=1352&pk_….
World Professional Association for Transgender Health, Standards of Care for the Health of Transsexual, Transgender, and Gender Nonconforming People, 7th version (2011), http://www.wpath.org/site_page.cfm?pk_association_webpage_menu=1351.