Site & Histology Exercise
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Site Code: C71.8
Pathology reports confirm malignancy of the mass seen on imaging, which overlaps the left parietal and occipital lobes of the brain.
Histology Code: 9440/39
Biopsy and resection pathology reports state glioblastoma (multiforme). No grade is stated. Code histologic grade = 9. (Reference: SEER Program Coding and Staging Manual 2004, pg. 97, and Facility Oncology Registry Data Standards (FORDS) Revised for 2004, pg. 96.) Do not use the WHO grade to code histologic grade. Code the WHO grade in CS Site-Specific Factor 1 for this primary site.