CS Mets at DX

Code Description AJCC 7 M AJCC 6 M Summary Stage 1977 M Summary Stage 2000 M
00 No distant metastasis M0 M0 NONE NONE
10 Distant lymph node(s) Size Metastasis AJCC7 M1 D D
40 Distant metastasis except distant lymph node(s)
Carcinomatosis		 Size Metastasis AJCC7 M1 D D
50 40 + 10

Distant metastasis plus distant lymph node(s)		 Size Metastasis AJCC7 M1 D D
52 Stated as M1a with no other information on distant metastasis Size Metastasis AJCC7 M1 D D
54 Stated as M1b with no other information on distant metastasis Size Metastasis AJCC7 M1 D D
56 Stated as M1c with no other information on distant metastasis Size Metastasis AJCC7 M1 D D
60 Distant metastasis, NOS

Stated as M1 [NOS] with no other information on distant metastasis		 Size Metastasis AJCC7 M1 D D
99 Unknown; distant metastasis not stated
Distant metastasis cannot be assessed
Not documented in patient record		 M0 MX U U
- For CS Mets at DX codes 10-60, the M category for AJCC 7 staging is assigned based on the size of largest metastasis, recorded in CS Site-Specific Factor 4, as shown in the Size Metastasis AJCC 7 Table.