Apart from the update on her daughter's condition, O'Donnell has not addressed the circumstances surrounding the reported hospitalization. It's unclear when Chelsea was admitted or when she may be released.
ET reached out to O'Donnell's rep, who offered no comment at the time.
O'Donnell and her adopted daughter’s personal turmoil began last summer when Chelsea, then 17, was reported missing. O'Donnell shared in a post on her website that her daughter "stopped taking her medicine and is in need of medical attention." She was later found in New Jersery in the home of a 26-year-old man with a past arrest record. However, no arrest was made as Chelsea was reportedly there voluntarily.
Soon after, the pair had a highly publicized falling out in August, after she turned 18. According to the comedian, Chelsea decided to leave home and live with her birth mother, Deanna Micoley. Chelsea, however, claimed that O'Donnell kicked her out of the house.
During the tumultuous period, a spokeswomen for O'Donnell said in a statement that "Chelsea, like millions of people, lives with mental illness." Chelsea, however, denied those claims in a statement released to ET last November, saying, "Do I have a mental illness? No, but I do have a disease I suffer from and it is called depression and another called anxiety, like so many millions of others out there."
In recent months, it seems that mother and daughter have reconciled and reunited. O'Donnell has posted several Instagram pics of Chelsea, including this snapshot celebrating her 19th birthday last month.
"Happy birthday chelsea belle !!! 19 today #believe," O'Donnell captioned the smiling selfie.
Days earlier, around the anniversary of their public feud, the actress shared a similar photo of herself and her daughter standing side-by-side, which she captioned, "Chelsea and me - what a difference a year makes #hopelives."