SEER Inquiry System - Question 20010065 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 10/24/2025 2:14 PM

Question 20010065

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

#1: Coding Complex Morph Dx's, 2. Revised August 2002

#2: 2004 SEER Manual, 87

Question:

Histology (Pre-2007): What codes are used to represent the histology "mucinous adenocarcinoma arising in a villous adenoma" and "mucinous adenocarcinoma arising in a villous glandular polyp"? See discussion.

Discussion:

Should histology be coded to 8480/3 [mucinous adenocarcinoma] or 8261/3[adenocarcinoma arising a villous adenoma] or 8263/3 [adenocarcinoma in a villoglandular adenoma]?

Answer:

For tumors diagnosed prior to 2007:

Code the Histology field to 8480/3 [mucinous adenocarcinoma] using rule D in the Coding Complex Morphology Diagnoses: "Code the morphology with the highest code."

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:

N/A

Data Item Category:

Histology

Other Category:

N/A

Year:

2001