SEER Inquiry System - Report
Produced: 12/13/2024 9:25 AM
Question 20010052
Inquiry Details
References:
#1: SEER Program Code Man, 3rd Ed, 101
#2: 2004 SEER Manual, 92
Question:
Grade, Differentiation--Unknown Site: Is grade coded to 9 [Cell type not determined, not stated or not applicable] for all unknown primaries?
Discussion:
Answer:
Most unknown primaries would be coded to grade 9 [Cell type not determined, not stated or not applicable] in the Grade, Differentiation field unless the case is coded to one of the histologies for which the grade is implied, such as undifferentiated carcinoma, NOS [802034].
Cancer Site Category:
N/A
Data Item Category:
N/A
Other Category:
N/A
Year:
2001