2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Malignant Neoplasm Of Other And Unspecified Sites 190-199 > Secondary Malignant Neoplasm Of Other Specified Sites 198.* > 2006 ICD-9-CM Diagnosis 198.81 Secondary malignant neoplasm of breast View the most recent version of ICD-9-CM 198.81 The spread of the cancer to the breast. This may be from a primary breast cancer on the opposite side, or from a cancer at a distant site. 198.81 is a specific code that can be used to specify a diagnosis View the ICD-9-CM Volume 1 198.* hierarchy 198.81 Excludes skin of breast (198.2)