Code information about bone metastases only (discontinuous or distant metastases to bone) identified at the time of diagnosis. This field should not be coded for bone marrow involvement. Bone involvement may be single or multiple. Information about bone involvement may be clinical or pathologic.
Code this field whether or not the patient had any preoperative systemic therapy.
This field should be coded for all solid tumors, Kaposi sarcoma, Unknown Primary Site, and Other and Ill-Defined Sites.
Use code 8 for Hematopoietic, reticuloendothelial, Immunoproliferative and Myeloproliferative Neoplasms, and Hodgkin’s and non-Hodgkin’s Lymphoma.
Use code 9 when it cannot be determined from the medical record whether the patient specifically had bone metastases; for example, when there is documentation of carcinomatosis but bone is not specifically mentioned as a metastatic site.
0 = None; no bone metastases 1 = Yes
8 = Not applicable
9 = Unknown whether bone is involved; Not documented in patient record
This is a new item in 2016, replacing the CS_METS_AT_DX_BONE item.