Collaborative Stage

Collaborative Stage for TNM 7 - Revised 01/13/2010 [ Schema ]

SkinEyelid

CS Extension

Note 1: In the case of multiple simultaneous tumors, code the tumor with greatest extension.
Note 2: Skin ulceration does not alter the Collaborative Stage classification.
Note 3: Presence of tumor at eyelid margin takes priority over depth of invasion in dermis/tarsal plate; i.e., code 25 takes priority over codes 100-200.
Note 4: Metastatic skin lesions are coded in the field CS Mets at DX.

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepithelial Bowen disease; intraepidermal	Tis	Tis	IS	IS
100	Lesion(s) confined to dermis Minimal infiltration of dermis (not invading tarsal plate, not at eyelid margin)	^	*	L	L
150	Subcutaneous tissue (through entire dermis, not invading tarsal plate, not at eyelid margin)	^	*	L	L
155	Stated as T1 with no other information on extension	^	*	L	L
200	Tumor invades tarsal plate, not at eyelid margin	^	*	L	L
250	Tumor at eyelid margin	^	*	L	L
270	Stated as T2a with no other information on extension	^	*	L	L
300	Involves full eyelid thickness	^	*	L	L
320	Stated as T2b with no other information on extension	^	*	L	L
340	Stated as T2 [NOS] with no other information on extension	^	*	L	L
400	Localized, NOS	^	*	L	L
500	OBSOLETE DATA CONVERTED V0200 Converted to code 150 Subcutaneous tissue (through entire dermis)	ERROR	ERROR	ERROR	ERROR
600	OBSOLETE DATA RETAINED V0200 Perineural space involvement moved to CS SSF3 Adjacent structures, including: Bulbar conjunctiva Globe Perineural space Sclera Soft tissues of orbit	ERROR	T4	D	RE
610	Adjacent structures, including: Bulbar conjunctiva Globe Sclera Soft tissues of orbit	T3a	T4	D	RE
620	Bone/periosteum of orbit Skeletal muscle Underlying cartilage	T3a	T4	D	RE
650	Stated as T3a with no other information on extension	T3a	T3	D	RE
670	Complete resection requires enucleation, exenteration, or bone resection Stated as T3b with no other information on extension	T3b	T4	D	RE
690	Stated as T3 [NOS] with no other information on extension	T3NOS	T4	D	RE
700	OBSOLETE DATA CONVERTED V0200 See code 620 Bone/periosteum of orbit Skeletal muscle Underlying cartilage	ERROR	ERROR	ERROR	ERROR
715	Tumor unresectable, extensive invasion: Ocular structures Orbital structures	T4	T4	D	RE
720	Nasal cavity Paranasal sinuses Other craniofacial structures	T4	T4	D	D
740	Central nervous system	T4	T4	D	D
750	OBSOLETE DATA CONVERTED V0200 Converted to CS Extension Code 999 and CS Mets at DX Code 20, 30, 55, or 58 Metastatic skin lesion(s)	ERROR	ERROR	ERROR	ERROR
800	Further contiguous extension	T4	T4	D	D
810	Stated as T4 with no other information on extension	T4	T4	D	D
950	No evidence of primary tumor	T0	T0	U	U
999	Unknown extension Primary tumor cannot be assessed Not documented in patient record	TX	TX	U	U

^ For Extension codes 100 through 400 ONLY for AJCC 7th Edition staging, the T category is assigned based on the value of CS Tumor Size, CS Extension, and Perineural Invasion recorded in CS Site-Specific Factor 6, as shown in Extension Size Perineural Invasion 1 AJCC7 table and Extension Size Perineural Invasion 2 AJCC 7 table.
* For Extension codes 100 through 400 ONLY for AJCC 6th Edition staging, the T category is assigned based on value of CS Tumor Size, CS Extension, and Perineural Invasion recorded in CS Site-Specific Factor 6, as shown in Extension Size Perineural Invasion 1 AJCC 6 table and Extension Size Perineural Invasion 2 AJCC 6 table.