This happens because " Stercobilinogen " is simply the name given to Urobilinogen in the GI tract; and in fact its use as a separate term has fallen out of favor due to the confusion.
12.
It can either be further converted into stercobilinogen, which is then oxidized to stercobilin and passed out in the feces, or it can be reabsorbed by the intestinal cells, transported in the blood to the kidneys, and passed out in the urine as the oxidised product urobilin.
