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National Cancer Data Base - Data Dictionary PUF 2016

Tumor Size Summary

PUF Data Item Name: 
NAACCR Item #: 
Diagnosis Years Available: 
2016 and later
Allowable values: 
000-990, 998, 999
Describes the most accurate measurement of a solid primary tumor, usually measured on the surgical resection specimen. Describes the largest dimension of the diameter of the primary tumor in millimeters.
Registry Coding Instructions: 

Refer to the instructions in the 2016 FORDs manual,page 142, at

Analytic Note: 

This variable was added as a FORDs item in 2016, replacing the Collaborative Stage Tumor Size variable collected in 2004-2015 (CS_Tumor_Size). Use the CS_TUMOR_SIZE variable for 2004-2015 diagnosis years, and the Tumor_Size_Summary_2016 for cases diagnosed in 2016 and later. This field is blank for melanoma of the skin. Use CS Site Specific Factor #1 to obtain Breslow’s depth for melanoma of the skin. The codes for Tumor Size Summary are slightly different from those in the CS_Tumor_size variable.

Code Description
000 No mass/tumor found
001 1 mm or described as less than 1 mm
002-988 Exact size in millimeters (2 mm to 988 mm)
989 989 millimeters or larger
990 Microscopic focus or foci only and no size of focus is given
Alternate descriptions of tumor size for specific sites: Familial/multiple polypopis
Rectosigmoid and rectum (C19.9, C20.9) Colon (C18.0,C18.2-C18.9)

If no size is documented: Circumferential:
Esophagus (C15.0-C15.5, C15.8-C15.9)

Diffuse; widespread:3/4s or more; linitis plastica:
Stomach and Esophagus GE Junction (C16.0-C16.6, C16.8-C16.9)

Diffuse, entire lung or NOS:
Lung and main stem bronchus (C34.0-C34.3,C34.8-C34.9) Diffuse:
Breast (C50.0-C50.6,C50.8-C50.9)
999 Unknown; size not stated
Not documented in patient record
Size of tumor cannot be assessed, Not applicable