SSF4¶

Site-Specific Factor (SSF) 4 · Site-Specific Factor (SSF) 4

Dataset Breast staging sample (유방암 표본 병기)
Table Cancer registration · 암_공공_병기조사_유방암_DB_암등록
File CS_BC_RGST
Type VARCHAR(3)

Definition¶

Site-Specific Factor (SSF) 4.

Codes¶

Code	한글	English
`0`	Regional lymph nodes negative on routine hematoxylin and eosin (H and E), no immunohistochemistry (IHC) OR unknown if tested for isolated tumor cells (ITCs) by IHC studies Nodes clinically negative, not examined pathologically	Regional lymph nodes negative on routine hematoxylin and eosin (H and E), no immunohistochemistry (IHC) OR unknown if tested for isolated tumor cells (ITCs) by IHC studies Nodes clinically negative, not examined pathologically
`1`	Regional lymph nodes negative on routine H and E, IHC studies done, negative for tumor	Regional lymph nodes negative on routine H and E, IHC studies done, negative for tumor
`2`	Regional lymph nodes negative on routine H and E, IHC studies done, positive for ITCs (Tumor cell clusters not greater than 0.2 millimeter (mm))	Regional lymph nodes negative on routine H and E, IHC studies done, positive for ITCs (Tumor cell clusters not greater than 0.2 millimeter (mm))
`9`	Regional lymph nodes negative on routine H and E, positive for tumor detected by IHC, size of tumor cell clusters or metastases not stated Stated as N0(i+) with no further information on regional lymph nodes	Regional lymph nodes negative on routine H and E, positive for tumor detected by IHC, size of tumor cell clusters or metastases not stated Stated as N0(i+) with no further information on regional lymph nodes
`987`	Not applicable: CS Lymph Nodes not coded 000	Not applicable: CS Lymph Nodes not coded 000
`988`	Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 988 will result in an edit error.)	Not applicable: Information not collected for this case (If this item is required by your standard setter, use of code 988 will result in an edit error.)

The catalog records these codes as valid from 2012 through 2019.

Catalog note¶

Site-Specific Factor (SSF) 4

Immunohistochemistry (IHC) of Regional Lymph Nodes

The Korean text is from the portal data catalog for this 표본 병기 database, downloaded 30 October 2026 (국가암데이터센터_암공공_표본_병기_유방암_261030113608.xlsx). The English is a translation for this site. The catalog says that code values beyond this sheet are on the Health Insurance Review and Assessment Service open-data system.