ICD-10-CM > N00-N99 > N80-N98 > N80 > N80.1 > N80.11 N80.11 Superficial endometriosis of the ovary Non-Billable/Non-Specific Codes N80.111Superficial endometriosis of right ovaryN80.112Superficial endometriosis of left ovaryN80.113Superficial endometriosis of bilateral ovariesN80.119Superficial endometriosis of ovary, unspecified ovary