The rare leukistic alligator with blue eyes and white skin had a successful surgery and recovered.
The Henry Doorly Zoo and Aquarium in Omaha said visitors had been throwing coins into the animal's enclosure, which the 36-year-old alligator ate before cleaning.
Zoo management urged visitors to refrain from "throwing coins into any body of water at the zoo" after a large amount of coins were removed from the stomach of the crocodile, named Thibodaux.
All 10 crocodiles at the Henry Doorly Zoo underwent various examinations, including blood sampling and radiography.
Veterinarian Christina Ploog said all of the coins in Thibodaux's stomach were removed without causing any problems.
"However, between two cleanings, the crocodiles may have already eaten the items to be cleaned," the zoo said in a Facebook post.
