SEER Inquiry System - Question 20010052 Details

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Question 20010052

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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