Organization | Field Name | ID | Required |
---|---|---|---|
KCR | cTNM Stage Group (CStageGroup) | 30980 | yes |
NAACCR | TNM Clin Stage Group | yes |
Field Length: 4
This field identifies the anatomic extent of disease based on the T, N, and M elements known prior to the start of any therapy. Code the clinical TNM stage grouping from the cTNM classification in items 30950-30970, using the AJCC Cancer Staging Manual. Record '88' if the TNM staging system is not appropriate for this site/histology of cancer.
Note: For diagnoses prior to 2004, this field was used to calculate Best Stage Group. It becomes the value in Best Stage Group if the pTNM Stage Group is equal to '88' or '99', or if the pathologic descriptor indicates pre-surgical treatment was administered. After 2004, the CS derived AJCC 6th edition stage group is the Best Stage Group.
Code | Definition | Code | Definition |
---|---|---|---|
0 | Stage 0 | 2B | Stage IIB |
0A | Stage 0A | 2C | Stage IIC |
0IS | Stage 0is | 3 | Stage III |
1 | Stage I | 3A | Stage IIIA |
1A | Stage IA | 3B | Stage IIIB |
1A1 | Stage IA1 | 3C | Stage IIIC |
1A2 | Stage IA2 | 3C1 | Stage IIIC1 |
1B | Stage IB | 3C2 | Stage IIIC2 |
1B1 | Stage IB1 | 4 | Stage IV |
1B2 | Stage IB2 | 4A | Stage IVA |
1C | Stage IC | 4A1 | Stage IVA1 |
1S | Stage IS | 4A2 | Stage IVA2 |
2 | Stage II | 4B | Stage IVB |
2A | Stage IIA | 4C | Stage IVC |
2A1 | Stage IIA1 | OC | Occult |
2A2 | Stage IIA2 | 88 | Not applicable |
99 | Unknown |