Quoting Commentary for II Chronicles 21:19

וַיְהִ֣י לְיָמִ֣ים ׀ מִיָּמִ֡ים וּכְעֵת֩ צֵ֨את הַקֵּ֜ץ לְיָמִ֣ים שְׁנַ֗יִם יָצְא֤וּ מֵעָיו֙ עִם־חָלְי֔וֹ וַיָּ֖מָת בְּתַחֲלֻאִ֣ים רָעִ֑ים וְלֹא־עָ֨שׂוּ ל֥וֹ עַמּ֛וֹ שְׂרֵפָ֖ה כִּשְׂרֵפַ֥ת אֲבֹתָֽיו׃

And it came to pass, that in process of time, at the end of two years, his bowels fell out by reason of his sickness, and he died of sore diseases. And his people made no burning for him, like the burning of his fathers.