Organization

Field Name

ID

Required

KCR

EOD Schema Discriminator 2

30123

 

SEER

Schema Discriminator 2

3927

 

Note A schema discriminator is used to discriminate for histology 8020/3 Undifferentiated carcinoma to determine which Stage Group table to use.

  • 8020/3 Undifferentiated carcinoma with squamous component (see code 1)
    Use the Squamous Cell Carcinoma Stage Group Table
  • 8020/3 Undifferentiated carcinoma with glandular component (see code 2)
    Use the Adenocarcinoma Stage Group Table
  • 8020/3 Undifferentiated carcinoma, NOS (no mention of squamous or glandular component) (see code 3)
    Use the Squamous Cell Carcinoma Stage Group Table

Code

Description

Disease

1

Undifferentiated carcinoma with squamous component

16.1: Esophagus and Esophagogastric Junction: Squamous Cell Carcinoma

2

Undifferentiated carcinoma with glandular component

16.2: Esophagus and Esophagogastric Junction: Adenocarcinoma

9

Undifferentiated carcinoma, NOS

16.1: Esophagus and Esophagogastric Junction: Squamous Cell Carcinoma

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Histology is NOT 8020, Discriminator is not necessary

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