The network claimed at the time that she had requested "a very limited part-time schedule" and was therefore "unable to perform the demands of her role."
However, the actress took issue with their statement, claiming in a series of tweets that her doctor had recommended a reduced work schedule due to her ongoing struggle with Celiac disease, a request that was not met, which caused her to collapse on set.
She went on to claim that CBS then put her on unpaid leave and had kept her from working elsewhere during her two-month absence.
Esposito's final episode of "Blue Bloods" aired on Nov. 2. She has since been replaced by actresses Megan Ketch and Megan Boone to sub as Danny's (Donnie Wahlberg) partner.
"Blue Bloods" continues Fridays at 10/9 p.m CST on CBS.