I'm just pulling the usage from the Catholic Encylopedia, via Catholic Answers so that I can't be accused of misconstruing anything: https://www.catholic.com/encyclopedia/paganism
As something issued by all bishops in the USA, it did at one time have official status in dioceses within the United States.
But it's not a place to cite 'official' Catholic teaching, because it's not a universal Church document the way a church council, a vatican statement, or the writings of one of the church doctors would be.
It's best to cite a source that the Baltimore Catechism would have used as the authoritative source.