Tumor Tip of the Week 06-05-2024 Preferred grading system not used and Generic Grade Categories Not Applicable

06-05-2024 Preferred grading system not used and Generic Grade Categories Not Applicable

Scenario:

• Biopsy of Endometrium: Well differentiated clear cell adenocarcinoma, FIGO Grade 1
• TAH, BSO: High grade clear cell adenocarcinoma

Question: What is Grade Pathologic?

• 1 G1 FIGO Grade 1 G1: Well differentiated
• 3 G3 FIGO Grade 3 G3: Poorly differentiated or undifferentiated
• 9 Grade cannot be assessed (GX)

Answer: 9 Grade cannot be assessed (GX)

Grade Manual 3.3 –Grade ID 13-Grade Pathological Instructions

Note 2: There is a preferred grading system for this schema. If the clinical grade given uses the preferred grading system and the pathological grade does not use the preferred grading system, do not record the Grade Clinical in the Grade Pathological field. Assign Grade Pathological 9.

• Example:

• Biopsy of corpus shows a well differentiated clear cell adenocarcinoma, FIGO Grade 1.
• The surgical resection states a high-grade clear cell carcinoma

• Code Grade Clinical 1 (G1) since FIGO and well differentiated is the preferred grading system
• Code Grade Pathological as 9 since the preferred grading system was not used and the Generic Grade Categories do not apply to this grade table