ICD-10-CM > N00-N99 > N80-N98 > N80 > N80.5 N80.5 Endometriosis of intestine Non-Billable/Non-Specific Codes N80.50Endometriosis of intestine, unspecifiedN80.51Endometriosis of the rectumN80.511Superficial endometriosis of the rectumN80.512Deep endometriosis of the rectumN80.519Endometriosis of the rectum, unspecified depthN80.52Endometriosis of the sigmoid colonN80.521Superficial endometriosis of the sigmoid colonN80.522Deep endometriosis of the sigmoid colonN80.529Endometriosis of the sigmoid colon, unspecified depthN80.53Endometriosis of the cecumN80.531Superficial endometriosis of the cecumN80.532Deep endometriosis of the cecumN80.539Endometriosis of the cecum, unspecified depthN80.54Endometriosis of the appendixN80.541Superficial endometriosis of the appendixN80.542Deep endometriosis of the appendixN80.549Endometriosis of the appendix, unspecified depthN80.55Endometriosis of other parts of the colonN80.551Superficial endometriosis of other parts of the colonN80.552Deep endometriosis of other parts of the colonN80.559Endometriosis of other parts of the colon, unspecified depthN80.56Endometriosis of the small intestineN80.561Superficial endometriosis of the small intestineN80.562Deep endometriosis of the small intestineN80.569Endometriosis of the small intestine, unspecified depth