SEER Inquiry System - Question 20081138 Details

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Produced: 10/03/2025 3:04 PM

Question 20081138

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Inquiry Details

References:

ICD-O-3

Question:

MP/H Rules/Histology--Lung: What is the correct histology code for a neuroendocrine neoplasm described as a carcinoid and also referred to as oncocytic? See Discussion.

Discussion:

Left mainstem bronchus mass excised: metaplastic endobronchial mucosa with submucosa containing an infiltrating poorly diff malignant tumor. Origin of tumor is not identified in overlying mucosa. IHC stains will be performed.

Addendum #1. IHC stains show well diff neuroendocrine neoplasm, favor carcinoid. Recommend sending this to expert in lung neoplastic pathologist.

Addendum #2. (lung path specialist) oncocytic neuroendocrine neoplasm.

Is this 8246 or 8290 or something else?

Answer:

For cases diagnosed 2007 or later, code as 8246 [Neuroendocrine carcinoma, NOS]. According to our pathologist consultant, the neuroendocrine description is more specific than the oncocytic description in this case.

Cancer Site Category:

Lung

Data Item Category:

Histology

Other Category:

N/A

Year:

2008