C79.63
BillableSecondary malignant neoplasm of bilateral ovaries
HCC Category Mapping
V28HCC 18 — Metastatic Cancer to Peritoneum and Other Specified Sites
0.368V24HCC 8 — Metastatic Cancer and Acute Leukemia
2.484ESRDHCC 8 — Metastatic Cancer and Acute Leukemia
0.000RxHCCHCC 18 — Metastatic Cancer to Lung and Other Respiratory Sites
0.000What This Code Means
Cancer that has spread to both ovaries from a primary cancer site elsewhere in the body.
Coding Tips
Clinical Significance
Secondary malignant neoplasm of bilateral ovaries indicates metastatic cancer involving both ovaries. Bilateral ovarian metastases are characteristic of Krukenberg tumors from gastrointestinal primaries and may also occur with breast or uterine cancer. Bilateral involvement typically indicates more extensive peritoneal spread and carries a poorer prognosis than unilateral disease.
Documentation Requirements
- ✓Primary cancer site documented and coded separately
- ✓Explicit documentation confirming cancer in BOTH ovaries
- ✓Pathological confirmation of metastatic origin in both ovaries
- ✓Imaging showing bilateral ovarian masses
- ✓Assessment for associated peritoneal carcinomatosis — code C78.6 if present
- ✓Bilateral salpingo-oophorectomy status if performed
Commonly Confused Codes
C56.3 — Primary malignant neoplasm of bilateral ovaries; bilateral primary ovarian cancer must be distinguished from bilateral metastatic diseaseC79.60 — Secondary malignant neoplasm of unspecified ovary; use C79.63 when bilateral involvement is documentedC79.61/C79.62 — Secondary malignant neoplasm of right/left ovary; do not code separately when bilateral (C79.63) is documentedC78.6 — Secondary malignant neoplasm of peritoneum; peritoneal carcinomatosis may coexist and should be coded separately
Code Hierarchy
└C79Secondary malignant neoplasm of other and unspecified sites└C79.6Secondary malignant neoplasm of ovary└C79.63Secondary malignant neoplasm of bilateral ovaries
└C79.63Secondary malignant neoplasm of bilateral ovaries