Ausmus, 40, has a pinched nerve in his neck and was placed on the 15-day disabled list.
The move comes after the veteran receiver caught all nine innings of the Dodgers' Thursday defeat of Pittsburgh -- his first appearance of the 2010 season after missing a week of spring training with the same ailment.
The Dodgers said catcher A.J. Ellis has been recalled from Triple-A Albuquerque to fill the roster spot. Ellis has played in 12 big-league games during the last two seasons, logging one hit in 13 at-bats.