N80.5Non-Billable (Header)Endometriosis of intestineChild CodesN80.50Endometriosis of intestine, unspecifiedN80.51Endometriosis of the rectumN80.52Endometriosis of the sigmoid colonN80.53Endometriosis of the cecumN80.54Endometriosis of the appendixN80.55Endometriosis of other parts of the colonN80.56Endometriosis of the small intestineCode Hierarchy└N80Endometriosis└N80.5Endometriosis of intestine└N80.5Endometriosis of intestine