SEER Inquiry System - Question 20081111 Details

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Question 20081111

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Inquiry Details

References:

2007 SEER Manual, C-645. Appendix C

Question:

MP/H Rules/Histology--Breast: If an in situ carcinoma diagnosed in 2007 demonstrates comedo necrosis, should the histology be coded to comedocarcinoma in situ? See Discussion.

Discussion:

According to the new MP/H rules, we code descriptive features. There is no coding guidance or reference to "necrosis" within the breast MP/H rules. Based on SEER SINQ 20021002, the "comedo necrosis" would not be coded at all for pre-2007 cases. Does this still hold true for cases diagnosed after January 1, 2007?

Answer:

For cases diagnosed 2007 or later, comedo necrosis is not synonymous with comedocarcinoma. If no further information is available for this case, code as carcinoma in situ.

Cancer Site Category:

Breast

Data Item Category:

Histology

Other Category:

N/A

Year:

2008