CS Mets at DX

Notes

**Note 1**: According to AJCC, p. 594: "Tumors affecting the central nervous system rarely develop extraneural metastases, probably because of inherent biologic characteristics of these tumors, and also because the brain does not have a well-developed drainage system. . . . Certain tumors do spread through cerebrospinal fluid (CSF) pathways, and such spread has a major impact on survival."
Code Description AJCC 7 M AJCC 6 M Summary Stage 1977 M Summary Stage 2000 M
00 No distant metastasis NA NA NONE NONE
10 OBSOLETE DATA RETAINED AND REVIEWED V0203
See codes 20, 30, and 50

Distant metastases
NA NA D D
20 Metastasis within CNS and CSF pathways
"Drop" metastasis
NA NA D D
30 Metastasis outside the CNS
Extra-neural metastasis
NA NA D D
50 30 + 20

Metastasis within and outside CNS
NA NA D D
85 OBSOLETE DATA CONVERTED V0203
See code 20

"Drop" metastases
ERROR: ERROR: ERROR: ERROR:
99 Unknown; distant metastasis not stated
Distant metastasis cannot be assessed
Not documented in patient record
NA NA U U