ICD-10-CM > C00-D49 > C76-C80 > C79 > C79.8 C79.8 Secondary malignant neoplasm of other specified sites Non-Billable/Non-Specific Codes C79.81Secondary malignant neoplasm of breastC79.82Secondary malignant neoplasm of genital organsC79.89Secondary malignant neoplasm of other specified sites