ICD-10-CM > N00-N99 > N80-N98 > N80 > N80.5 > N80.53 N80.53 Endometriosis of the cecum Non-Billable/Non-Specific Codes N80.531Superficial endometriosis of the cecumN80.532Deep endometriosis of the cecumN80.539Endometriosis of the cecum, unspecified depth