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National Cancer Data Base - Data Dictionary PUF 2016

Mets at DX-Liver

PUF Data Item Name: 
NAACCR Item #: 
Diagnosis Years Available: 
Allowable values: 
0, 1, 8, 9
This data item identifies whether liver is an involved metastatic site.
Registry Coding Instructions: 

Code information about liver metastases only (discontinuous or distant metastases to brain) identified at the time of diagnosis. Liver involvement may be single or multiple. Information about liver 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 liver metastases; for example, when there is documentation of carcinomatosis but liver is not specifically mentioned as a metastatic site.

NCDB System Code Assignments: 

0 = None; no liver metastases 1 = Yes
8 = Not applicable
9 = Unknown whether liver is involved; Not documented in patient record

Analytic Note: 

This is a new item in 2016, replacing the METS_AT_DX_LIVER item.