SEER Inquiry System - Question 20081130 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 10/30/2025 11:07 PM

Question 20081130

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

2007 SEER Manual, C-696. Appendix C

Question:

MP/H Rules--Breast: What histology code is used for lobular with focal ductal features? Do we ignore the focal features and code as lobular or do we use the combination code for duct and lobular?

Discussion:

Answer:

For cases diagnosed 2007 or later, use rule H14 and assign code 8520 [lobular]. Ignore histologies described as "focal," "foci," or "focus." This instruction will be added to the next version of the MP/H manual.

Cancer Site Category:

Breast

Data Item Category:

N/A

Other Category:

N/A

Year:

2008