“All in the Family” creator Norman Lear reportedly died from heart issues.

His official cause of death is listed as cardiac arrest on his death certificate, obtained by TMZ on Monday.

The document also lists congestive heart failure as an underlying cause of death.

Lear died at his Beverly Hills home on Dec. 6. He was 101.

The Post has contacted a rep for Lear for comment.

Lear was a revolutionary TV sitcom creator and movie producer who delighted the world with such shows as, in addition to “All in the Family,” “Maude,” “The Jeffersons,” “Good Times,” “Sanford and Son,” “One Day at a Time” and “Mary Hartman, Mary Hartman.”

His shows were renowned not only for their humor but also for addressing more serious themes than had been the norm in network television comedy. Topics discussed in Lear’s work included abortion, race relations, mental health and alcoholism.

Jimmy Kimmel, who worked with Lear on several projects, was one of many celebrities to pay tribute to the TV icon upon his death.

“He taught us so much about so many serious things, always making us laugh while he did it, and everyone who works in or even watches television owes him a great debt. Especially me,” Kimmel said on his late-night show.

He added that Lear “used situation comedy to shine a light on prejudice, intolerance and inequality.

“He created families that mirrored ours, showing us a world in which Archie Bunker and Michael Stivic could learn to not only co-exist, but to love one another. Even at 101, Norman cared as much about the future, our children and planet as anyone I have ever known,” Kimmel said.

“All in the Family” star Rob Reiner also reacted to the news of his “second father” dying on social media, writing, “I loved Norman Lear with all my heart … Sending my love to Lyn and the whole Lear family.”

Lear is survived by his third wife, Lyn Davis Lear, and his six children: Ellen, Kate, Maggie, Benjamin and twins Madelaine Rose and Brianna Elizabeth.