Katherine Heigl has officially checked out of 'Grey's Anatomy.'

In an exclusive interview with Entertainment Weekly (on stands Friday), Heigl reveals that she is "done" with the show, citing family issues as the reason behind her exit. "I started a family and it changed everything for me," she told the magazine, regarding her adopted daughter, Naleigh. "It changed my desire to work full-time."

"I know I'm disappointing the fans. I just had to make a choice. I hope I made the right one," she added.