C79.01
BillableSecondary malignant neoplasm of right kidney and renal pelvis
HCC Category Mapping
V28HCC 17 — Metastatic Cancer and Acute Leukemia
0.368V24HCC 8 — Metastatic Cancer and Acute Leukemia
2.484ESRDHCC 8 — Metastatic Cancer and Acute Leukemia
0.000RxHCCHCC 17 — Metastatic Cancer to Kidney, Bone, and Other Sites
0.000What This Code Means
Cancer that has spread to the right kidney or the renal pelvis on the right side from a primary cancer that originated elsewhere.
Coding Tips
- •This code specifically indicates the right side; use C79.02 for left kidney involvement
- •Document the primary cancer site separately and ensure clinical notes confirm metastatic disease to the right kidney
Clinical Significance
Secondary malignant neoplasm of the right kidney and renal pelvis confirms metastatic cancer with specific laterality. Renal metastases most commonly originate from lung, breast, and contralateral kidney cancers. This laterality-specific code reflects quality documentation and supports treatment planning for potential surgical intervention or systemic therapy.
Documentation Requirements
- ✓Primary cancer site documented and coded separately
- ✓Explicit documentation of right kidney involvement
- ✓Imaging confirmation — CT with contrast, MRI, or PET scan
- ✓Renal function assessment including contralateral kidney function
- ✓Size, number, and location of metastatic lesions within the right kidney
Commonly Confused Codes
C64.1 — Primary malignant neoplasm of right kidney; must confirm this is secondary, not primary renal cancerC79.00 — Secondary malignant neoplasm of unspecified kidney; use C79.01 when right side is documentedC79.02 — Secondary malignant neoplasm of left kidney; verify laterality carefullyC65.1 — Primary malignant neoplasm of right renal pelvis; distinguish primary from metastatic renal pelvis involvement
Code Hierarchy
└C79Secondary malignant neoplasm of other and unspecified sites└C79.0Secondary malignant neoplasm of kidney and renal pelvis└C79.01Secondary malignant neoplasm of right kidney and renal pelvis
└C79.01Secondary malignant neoplasm of right kidney and renal pelvis