NAACCR Item #752: Tumor Size Clinical

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
752 3 SEER 2016 16

NAACCR XML: Tumor.tumorSizeClinical

This data item records the size of a solid primary tumor before any treatment (surgical resection or initiation of any treatment including neoadjuvant).
Clinical tumor size (pre-treatment size) is essential for treatment decision making and prognosis determination for many types of cancer.
Codes (Refer to the most recent version of SEER Program Coding and Staging Manual for additional instructions.)
000 No mass/tumor found
001 1 mm or described as less than 1 mm (0.1 cm or less than 0.1 cm)
002-988 Exact size in millimeters (2 mm to 988 mm) (0.2 to 98.8 cm)
989 989 millimeters or larger (98.9 cm 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 polyposis:
-Rectosigmoid and rectum (C19.9, C20.9)
-Colon (C18.0, C18.2-C18.9)

If no size is documented:
-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)

-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; The only measurement(s) describes pieces or chips; Not applicable