Collaborative Stage Data Set - Revised 06/29/2011 FINAL

MerkelCellSkin

CS Mets at DX

Note 1: In-transit metastasis is coded in CS Lymph Nodes.
Note 2: Nodes in contiguous (secondary) and bidirectional (cephalad/caudal) primary nodal basins are coded in CS Lymph Nodes. (Clarification V0204)

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
00	No distant metastasis	M0	M0	NONE	NONE
10	Distant lymph node(s)	M1a	M1	D	D
15	Metastasis to skin or subcutaneous tissue	M1a	M1	D	D
20	Stated as M1a with no other information on distant metastases	M1a	M1	D	D
30	Lung	M1b	M1	D	D
35	30 + (10 or 15) Metastasis to lung plus distant lymph node(s) or skin or subcutaneous tissue	M1b	M1	D	D
37	Stated as M1b with no other information on distant metastasis	M1b	M1	D	D
40	OBSOLETE DATA RETAINED V0200 See code 60 Distant metastasis, NOS Distant metastases except distant lymph node(s) (code 10) Carcinomatosis	ERROR	M1	D	D
45	Distant metastasis to all other visceral sites except distant lymph node(s), skin or subcutaneous tissue, or lung Carcinomatosis	M1c	M1	D	D
50	OBSOLETE DATA RETAINED V0200 10 + 40 Distant lymph node(s) plus other distant metastases	ERROR	M1	D	D
55	45 + (any of 10, 15, or 30) Metastasis to other visceral sites plus distant lymph node(s), skin, subcutaneous tissue, or lung	M1c	M1	D	D
57	Stated as M1c with no other information on distant metastases	M1c	M1	D	D
60	Distant metastasis, NOS Stated as M1 [NOS] with no other information on distant metastasis	M1NOS	M1	D	D
99	Unknown; distant metastasis not stated Distant metastasis cannot be assessed Not documented in patient record	M0	MX	U	U