Show me one example of an unbiblical or non-biblically defensible doctrine of the Catholic Church. For those who are unclear, there are only two documents which explicitly articulate Catholic doctrine: the Catechism and the Code of Canon Law. In your answer, please include the relevant paragraph number from the Catechism, or canon number from the Code.

(Quotes from Catholic scholars, quotes from papal encyclicals, and dubiously attributed papal soundbites are not of a doctrinal nature, and so are not applicable here.)

The challenge has been added to the blog header, and will be active until 5:44 PM Mountain Standard Time, on September 30th, 2008. Answers can be given by private message, or in the comments form of any subsequent blog post.