SEER Inquiry System - Question 20031054 Details

System Guide

Back to Search Results

SEER Inquiry System - Report

Produced: 10/13/2025 5:32 PM

Question 20031054

Export CSV Export PDF Print

Add to Report

Inquiry Details

References:

#1: ICD-O-3, 93

#2: AJCC Cancer Staging Manual, 188. Sixth Edition

Question:

Grade, Differentiation: Is grade always coded to 4 for a diagnosis of Ewing's sarcoma?

Discussion:

Answer:

Do not code the ICD-O-3 grade for Ewing sarcoma unless documented in the record.

In the TNM system, grade is required to place Ewing sarcoma into a stage group. For TNM staging purposes, Ewing sarcoma is classified as G4. Do not apply TNM rules to ICD-O coding.

Cancer Site Category:

N/A

Data Item Category:

N/A

Other Category:

N/A

Year:

2003