Site & Histology Exercise
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Site Code: C54.1
Path and CT reports indicate endometrium as primary site ("endometrial carcinoma").
Histology Code: 8380/39
Path reports state endometrioid adenocarcinoma. This is a specific subtype of adenocarcinoma and may also arise outside of the endometrium. Code grade = 9. FIGO grade (G3 in the exercise) is part of the FIGO staging system and should not be used to code the 6th digit histologic grade in the tumor morphology code. (Reference: SEER Inquiry System, question ID# 20020059.)