Albert Barnes Commentary 2 Chronicles 26:21

"And Uzziah the king was a leper unto the day of his death, and dwelt in a separate house, being a leper; for he was cut off from the house of Jehovah: and Jotham his son was over the king`s house, judging the people of the land." — 2 Chronicles 26:21 (ASV)

A separate house — See the marginal reference "q" note; and compare Psalm 88, which is supposed by some to refer to Uzziah.