Malignant neoplasm of ovary

This code signifies the presence of a primary cancerous tumor originating in the ovary. It indicates an uncontrolled growth of abnormal cells within the ovarian tissue, which has the potential to spread to other parts of the body. This diagnosis is typically confirmed through biopsy and histopathological examination.

Apply this code when documentation clearly states a primary malignant neoplasm of the ovary. This includes cases of newly diagnosed ovarian cancer, as well as ongoing treatment or surveillance for a primary ovarian malignancy. Supporting documentation should include pathology reports, operative reports, and physician notes confirming the diagnosis.

• Always confirm laterality (left, right, bilateral) if specified in the documentation, as more specific codes may exist in other code sets.
• Distinguish carefully between primary ovarian cancer and metastatic cancer to the ovary; this code is for primary only.
• Ensure documentation specifies "malignant" to differentiate from benign or uncertain ovarian neoplasms.