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National Cancer Data Base - Data Dictionary PUF 2014

Surgical Margins

DD_category: 
PUF Data Item Name: 
RX_SUMM_SURGICAL_MARGINS
NAACCR Item #: 
1320
length: 
1
Allowable values: 
0-3, 7-9
Description: 
Records the final status of the surgical margins after resection of the primary tumor.
Registry Coding Instructions: 

·Record the margin status as it appears in the pathology report.

·Codes 0-3 are hierarchical; if two codes describe the margin status, use the numerically higher code.

·If no surgery of the primary site was performed, code 8.

·For lymphomas with a lymph node primary site (C77.0-C77.9), code 9.

·For an unknown or ill-defined primary (C76.0-C76.8, C80.9) or for hematopoietic, reticuloendothelial, immunoproliferative, or myeloproliferative disease, code 9.

·For Brain and CNS sites, the NCDB converts codes 0, 1, 2, 3, and 7 to code 9 for this item due to unreliability.

Code

Label

Definition

0

No residual tumor

All margins are grossly and microscopically negative.

1

Residual tumor, NOS

Involvement is indicated, but not otherwise specified.

2

Microscopic residual tumor

Cannot be seen by the naked eye.

3

Macroscopic residual tumor

Gross tumor of the primary site which is visible to the naked eye.

7

Margins not evaluable

Cannot be assessed (indeterminate).

8

No primary site surgery

No surgical procedure of the primary site. Diagnosed at autopsy.

9

Unknown or not applicable

It is unknown whether a surgical procedure to the primary site was performed; death certificate-only; for lymphomas with a lymph node primary site; an unknown or ill-defined primary; or for hematopoietic, reticuloendothelial, immunoproliferative, or myeloproliferative disease.