C79.1 is a "category code," which means it's non-billable. Billable codes require more specificity. Use the list below to navigate to codes that are more specific:
10
C79.10
Secondary malignant neoplasm of unspecified urinary organs
Billable
10
C79.11
Secondary malignant neoplasm of bladder
Billable
10
C79.19
Secondary malignant neoplasm of other urinary organs
Billable