C79: Secondary malignant neoplasm of other and unspecified sites
C79.5: Secondary malignant neoplasm of bone and bone marrow
The tissue in the body is made up of cells. With cancer, the cells multiply uncontrollably, which leads to a malignant neoplasm (abnormal growth of tissue) developing. The cancer cells can destroy the healthy tissue and spread throughout the body.
The cancer cells have spread in your body and multiplied at another site. These are called metastases.
Metastases can affect the bone tissue or the bone marrow.
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If you see an ICD diagnosis code (e.g., on a medical report), be aware that doctors may also include additional indicators to express diagnostic certainty. Only a healthcare professional can interpret these codes accurately in the context of your individual case.
For a complete understanding of your condition and what the diagnosis means for you, please speak directly with your doctor.