SEER Inquiry System - Question 20000530 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 03/08/2025 9:37 PM

Question 20000530

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

Question:

Histology (Pre-2007)/Grade, Differentiation--Brain and CNS: What code is used to represent the histology and grade for "WHO-II astrocytoma, grade II" of the brain when the WHO-II classification is different from the classification systems previously used? See discussion.

Discussion:

According to the WHO-I classification system, this is a moderately anaplastic astrocytoma. According to the Duke criteria, this is an astrocytoma. By Dauma-Dupont criteria, this is a grade 2 astrocytoma.

Answer:

For tumors diagnosed prior to 2007:

Code the Histology and Grade, Differentiation fields to 9401/34 [anaplastic astrocytoma].

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:

Brain and CNS

Data Item Category:

Histology

Other Category:

N/A

Year:

2000