C56.9

ICD-10-CM Coding Rules

• C56.9

Approximate Synonyms

• Cancer of the ovary

• Cancer of the ovary with peritoneal metastases

• Cancer of the ovary, disseminated

• Cancer of the ovary, endometrioid

• Cancer of the ovary, germ cell tumor

• Cancer of the ovary, mixed mullerian

• Cancer of the ovary, mucinous cystadenoca

• Cancer of the ovary, mucinous cystadenocarcinoma

• Cancer of the ovary, papillary serous cystadenoca

• Cancer of the ovary, papillary serous cystadenocarcinoma

• Cancer of the ovary, primary

• Cancer of the ovary, sarcoma

• Cancer of the ovary, sex chord tumor

• Cancer of the ovary, stage 1

• Cancer of the ovary, stage 2

• Cancer of the ovary, stage 3

• Cancer of the ovary, stage 4

• Cancer of the ovary, undifferentiated

• Carcinoma of ovary, stage 1

• Carcinoma of ovary, stage 2

• Carcinoma of ovary, stage 3

• Carcinoma of ovary, stage 4

• Endometrioid carcinoma ovary

• Germ cell tumor of ovary

• Malignant germ cell tumor of ovary

• Mucinous cystadenocarcinoma of ovary

• Ovarian cancer

• Ovarian cancer metastatic to peritoneum

• Ovarian cancer, disseminated

• Primary malignant neoplasm of ovary

• Primary malignant tumor of ovary of mixed mullerian type

• Sarcoma of ovary

• Sarcoma, ovary

• Serous papillary cystadenocarcinoma ovary

• Sex cord tumor of ovary

• Undifferentiated carcinoma of ovary

Details

• C56.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

• The 2023 edition of ICD-10-CM C56.9 became effective on October 1, 2022.

• This is the American ICD-10-CM version of C56.9 – other international versions of ICD-10 C56.9 may differ.