Good Morning Britain
The former political adviser will receive 24-hour care at his family home.
Throughout Piers' stint hosting Good Morning Britain, he was embroiled in a feud with his BBC Breakfast counterpart.
The Lingo host will be occupying Piers' old seat alongside Susanna Reid and Kate Garraway.
Kevin Lygo has said there "isn't a single person" who can replace the divisive presenter on the breakfast show.
The Good Morning Britain presenter says he has been "forced to step away" from social media.
The two presenters engaged in a five-year war of words over Good Morning Britain’s viewing figures.
The presenters, who co-hosted the ITV morning show for almost five years together, had a "long clear-the-air chat".
Piers Morgan Admits He Regrets Storming Off Good Morning Britain Following Clash With Alex Beresford
“I knew it wasn’t a good look, the great snowflake-basher running away from confrontation."
The presenter told co-host Kate Garraway it was "good to be back" following his on-air clash with Piers Morgan.
He decided against taking a cardboard cut-out of his former co-host Susanna Reid with him.