SEER Inquiry System - Question 20000256 Details

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Produced: 04/16/2026 3:45 AM

Question 20000256

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Inquiry Details

References:

SEER EOD-88, 3rd Ed, 100

Question:

EOD-Size of Primary Tumor--Melanoma: How do you code tumor size for a melanoma diagnosed by a positive lymph node biopsy when the primary site is coded C44.9 because no primary site was identified? See discussion.

Discussion:

Should the size be 000 because no primary was found or 999 for unknown?

Answer:

For cases diagnosed 1998-2003:

Code the EOD-Size of Primary Tumor field to 000 [No mass; no tumor found] when primary site is coded to C449.

Cancer Site Category:

Melanoma

Data Item Category:

N/A

Other Category:

N/A

Year:

2000