"Further updates will be provided as appropriate," the Sixers said in a brief statement.
The 76ers went into Thursday's game in eighth place in the Eastern Conference. But at just one game behind the sixth-placed Atlanta Hawks they could still rise in the standings enough to escape the play-in tournament that will see the seventh- through 10th-placed teams battle for the last two playoff spots.
After Thursday's game in Houston they close out the season with a game against the Pacers in Indiana and a home game against the Milwaukee Bucks.
It's not clear if Embiid when Embiid will be able to return to action.
The Cameroonian-born center, the NBA Most Valuable Player in 2023, is averaging 26.9 points and 7.7 rebounds in 38 games this season.
The 32-year-old has steadily returned to his top form this season while still missing multiple games to manage long-term injuries as well as new injuries including an oblique strain and a stress reaction in his right shin.