Collaborative Stage

Collaborative Stage for TNM 7 - Revised 12/29/2009 [ Schema ]

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: In-transit metastasis is coded in the CS Lymph Nodes field.
Note 4: If the ONLY information regarding the tumor extension is the physician's statement of the T category, assign code 310, 320, 330, or 810. (Refer to CS Tumor Size table for instructions on coding tumor size).

Code	Description	TNM 7 Map	TNM 6 Map	SS77 Map	SS2000 Map
000	In situ; noninvasive; intraepidermal	Tis	Tis	IS	IS
100	Lesion(s) confined to dermis Confined to scrotum	^	*	L	L
300	Localized, NOS	^	*	L	L
305	Subcutaneous tissue (through entire dermis)	^	T1	L	L
310	Stated as T1 with no other information on extension	^	*	L	L
320	Stated as T2 with no other information on extension	^	T2	L	L
330	Stated as T3 with no other information on extension	^	T3	L	L
400	Adjacent connective tissue (See definition of connective tissue in general instructions)	^	*	RE	RE
600	Adjacent organs/structures Male genital organs: Epididymis Penis Prostate Spermatic cord Testis	^	T4	RE	RE
800	Further contiguous extension Other organs and structures in male pelvis: Bladder Rectum Urethra	^	T4	D	D
805	Underlying cartilage, bone, skeletal muscle	T4	T4	D	D
810	Stated as T4 with no other information on extension	T4	T4	RE	RE
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 CS Extension codes 100, 300, 305, 310, 320, 330, 400, 600 and 800 ONLY, the T category for AJCC 7th Edition is assigned based on the value of CS Tumor Size and CS Extension as shown in the Extension Size Table AJCC 7 for this site.
* For CS Extension codes 100, 300, 310 and 400 ONLY, the T category for AJCC 6th Edition is assigned based on the value of CS Tumor Size, as shown in the Extension Size Table AJCC 6 for this site.