ICD-10-CM > N00-N99 > N80-N98 > N80 > N80.C N80.C Endometriosis of the abdomen Non-Billable/Non-Specific Codes N80.C0Endometriosis of the abdomen, unspecifiedN80.C1Endometriosis of the anterior abdominal wallN80.C10Endometriosis of the anterior abdominal wall, subcutaneous tissueN80.C11Endometriosis of the anterior abdominal wall, fascia and muscular layersN80.C19Endometriosis of the anterior abdominal wall, unspecified depthN80.C2Endometriosis of the umbilicusN80.C3Endometriosis of the inguinal canalN80.C4Endometriosis of extra-pelvic abdominal peritoneumN80.C9Endometriosis of other site of abdomen