ICD-10 Code C79.60 – Secondary malignant neoplasm of unspecified ovary (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C79.60 – Secondary malignant neoplasm of unspecified ovary
What it is
This code identifies metastatic cancer involving an ovary when the primary site is elsewhere and the affected ovary is not specified. Use it for secondary, not primary, ovarian malignancy.
Clinical signs
Clinical features vary; refer to documentation. Patients may have evidence of metastatic disease to the ovary on imaging, pathology, or operative findings, with the primary cancer documented elsewhere.
When to use this code
Use C79.60 when the record clearly states secondary malignant neoplasm of an unspecified ovary and no laterality or specific ovary is documented. It may also apply when pathology confirms ovarian metastasis from another primary site. Code the primary malignancy separately when documented.
Do not use for
Do not use this code for primary ovarian cancer, benign ovarian masses, or uncertain ovarian lesions. If the chart does not confirm metastatic disease, check documentation.
Coding tip
Confirm that the ovary is a metastatic site and that no more specific ovarian laterality code applies.