Moore suffered a heart attack and underwent a successful surgery on Wednesday.
He is resting in hospital in Sydney and said he is grateful to his “amazing doctors and nurses”.
Moore will be replaced by Brett Sprigg for tonight’s NRL grand final rematch between Penrith and Melbourne at Western Sydney Stadium.
Andrew Moore (left) has been ABC Sport’s chief rugby league caller since 2015. (X: ABC Sport)
Moore joined the ABC from 2GB in 2015 and has been ABC Sport’s chief rugby league radio caller ever since.
“Andrew Moore is one of the most respected and loved broadcasters in the country,” ABC Sport content director Tim Verrall said.
“The ABC Sport team are enormously relieved that our valued colleague is getting the care he needs.
“We look forward to welcoming him back when he’s recovered and we send our thoughts to Andrew and his family.”
Sprigg opened Thursday’s broadcast of the Panthers and Melbourne clash with the announcement that Moore had undergone surgery this week.
“He actually sent us a message, his ABC rugby league colleagues, just this afternoon and he’s a bit knocked around, but in good spirits,” Sprigg said.
“I know, trust me, how much he hates missing the footy.”
