SEER Inquiry System - Question 20041067 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 10/10/2025 11:19 PM

Question 20041067

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

2004 SEER Manual, 86

Question:

Histology (Pre-2007)--Lung: Does 8070 [squamous cell carcinoma], 8560 [adenosquamous carcinoma] or 8255 [adenocarcinoma with mixed subtypes] best represent this field for a lung biopsy described as a "poorly differentiated non-small cell carcinoma with squamous and glandular features with focal mucin positivity per mucin stain"?

Discussion:

Answer:

For tumors diagnosed prior to 2007:

Assign code 8560/33 [Adenosquamous carcinoma, poorly differentiated]. "Glandular" carcinoma is a synonym for adenocarcinoma. Mixed adenocarcinoma and squamous carcinoma is coded to 8560. Do not use code 8255 [Adenocarcinoma with mixed subtypes] when a more specific complex code is available.

For tumors diagnosed 2007 or later, refer to the MP/H rules. If there are still questions about how this type of tumor should be coded, submit a new question to SINQ and include the difficulties you are encountering in applying the MP/H rules.

Cancer Site Category:

Lung

Data Item Category:

Histology

Other Category:

N/A

Year:

2004