ICD-10-CM > N00-N99 > N80-N98 > N80 > N80.3 > N80.36 N80.36 Superficial endometriosis of the pelvic brim Non-Billable/Non-Specific Codes N80.361Superficial endometriosis of the right pelvic brimN80.362Superficial endometriosis of the left pelvic brimN80.363Superficial endometriosis of bilateral pelvic brimN80.369Superficial endometriosis of the pelvic brim, unspecified side