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SEER Inquiry System - Report
Produced: 10/23/2025 3:26 PM
Question 20220031
Inquiry Details
References:
2022 SEER Manual, 122. Pathologic Tumor Size
Question:
Tumor Size/Neoadjuvant Treatment: If a patient discontinues neoadjuvant therapy and then has surgery, how is the pathologic tumor size coded with the pathologic tumor size greater than the clinical tumor size? Currently, we are instructed to code 999 for the pathologic tumor size when neoadjuvant therapy is given; what happens when neoadjuvant chemotherapy is discontinued after 3 cycles (plan for 4 cycles)?
Discussion:
Answer:
Assign 999 for pathologic tumor size when patient has received neoadjuvant therapy, even when neo-adjuvant therapy is not completed. Describe the details in text fields.
Cancer Site Category:
N/A
Data Item Category:
Tumor size
Other Category:
Neoadjuvant treatment
Year:
2022
