Vargas first made the announcement Monday via Twitter:
Vargas has often been candid about her addiction, as well as her issues with anxiety.
"I am. I am an alcoholic,” she told George Stephanopoulos in an interview on "Good Morning America" this past January. "It took me a long time to admit that to myself. It took me a long time to admit it to my family, but I am."
Throughout her treatment, ABC News has expressed its support for Vargas, saying she could return to work whenever she feels ready. That moment seems to be now.