It's not fabricated, this is based on a question she was asked by the ACLU.
> ACLU: As President will you use your executive authority to ensure that transgender and nonbinary people who rely on the state for medical care - including those in prison and immigration detention - will have access to comprehensive treatment associated with gender transition, including all necessary surgical care? If yes, how will you do so?
> Harris: Yes. It is important that transgender individuals who rely on the state for care receive the treatment they need, which includes access to treatment associated with gender transition. That’s why, as Attorney General, I pushed the California Department of Corrections and Rehabilitation to provide gender transition surgery to state inmates. I support policies ensuring that federal prisoners and detainees are able to obtain medically necessary care for gender transition, including surgical care, while incarcerated or detained. Transition treatment is a medical necessity, and I will direct all federal agencies responsible for providing essential medical care to deliver transition treatment.