Question: A coworker at our oncology practice told me that I should never report 203.xx (Multiple myeloma) with 198.5 (Neoplasm; bone and bone marrow). Is she correct? Answer: No. If your oncologist treats a patient for bone metastasis, which resulted from a primary neoplasm such as multiple myeloma (203.xx), you can report 198.5 along with the primary diagnosis. However, carriers do not require you to report the cancer diagnosis in addition to the bone metastasis.
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