NAACCR Item #756: Tumor Size Summary

Item # Length Source of Standard Year Implemented Version Implemented Year Retired Version Retired
756 3 NPCR/CoC 2016 16

NAACCR XML: Tumor.tumorSizeSummary


This data item records the most accurate measurement of a solid primary tumor, usually measured on the surgical resection specimen.


Tumor size is one indication of the extent of disease. As such, it is used by both clinicians and researchers. Tumor size that is independent of stage is also useful for quality assurance efforts.

Codes: (See the most recent version of the STORE manual for additional instructions.)

000No mass/tumor found
0011 mm or described as less than 1 mm (0.1 cm or less than 0.1 cm)
002-988Exact size in millimeters (2mm-988mm) (0.2 cm to 98.8 cm)
989989 millimeters or larger (98.9 cm or larger)
990Microscopic focus or foci only and no size of focus is given
998Alternate 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:** 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)
999Unknown; size not stated; Not documented in patient record; Size of tumor cannot be assessed; No excisional biopsy or tumor resection done; The only measurement(s) describes pieces or chips; Not applicable