PMDD has probably existed as long as most other medical disorders; however, it was only officially recognized as a diagnosable disorder in 2013, when the American Psychiatric Association acknowledged the mounting evidence for PMDD by naming it as a new disorder in their diagnostic manual, the Diagnostic and Statistical Manual of Mental Disorders, 5th Edition (DSM-5). The World Health Organization has recently followed suit, voting in 2019 to include PMDD as an official disorder in the new International Classification of Diseases 11th Revision.

-Tory Eisenlohr-Moul, PhD, July 1, 2019