Final answer:
Hirschsprung Disease is a gastrointestinal disorder where there is a lack of nerve cells in parts of the intestine, leading to difficulty passing stool.
Step-by-step explanation:
Hirschsprung Disease, also known as congenital megacolon, is a gastrointestinal disorder. It is a condition where there is a lack of nerve cells in parts of the intestine, leading to difficulty passing stool. The affected portion of the intestine becomes narrow, causing a blockage.