SEER Inquiry System - Question 20160074 Details

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Produced: 03/26/2026 6:10 PM

Question 20160074

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Inquiry Details

References:

WHO Class Breast Tumors, 62

Question:

MP/H Rules/Histology--Breast: How should histology be coded for a breast primary with resection final diagnosis of "Ductal carcinoma with neuroendocrine features?" See Discussion.

Discussion:

Should the histology for "Ductal carcinoma with neuroendocrine features" be coded to 8500 (Ductal carcinoma, NOS) or 8574 (Adenocarcinoma with neuroendocrine differentiation)?

Answer:

Code the histology to 8574/3 for Ductal carcinoma with neuroendocrine features.

Ductal carcinoma is also called "invasive breast carcinoma of no special type." WHO classifies Invasive breast carcinoma with neuroendocrine differentiation as 8574/3.

Cancer Site Category:

Breast

Data Item Category:

Histology

Other Category:

N/A

Year:

2016