Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/28/2009 [ Schema ]

CS Site-Specific Factor 11
Poorly Differentiated Tumor Percentage

Note: Record the exact percentage of the primary tumor that is poorly differentiated as documented in the pathology report.

Code	Description
000	Poorly differentiated tumor not present/not identified
001-100	1-100 percent Examples: 5% = 005 10% = 010 99% = 099 0.1 to 0.9% = 001 (round up)
988	Not applicable: Information not collected for this case
990	Poorly differentiated tumor present, percent not stated
998	No histologic examination of primary site
999	Unknown Not documented in patient record