CS Extension: Other CNS

Code	Description	TNM	SS77	SS2000
05	Benign or borderline brain and other parts of the CSN tumors	NA	NA	NA
10	Tumor confined to tissue or site of origin	NA	L	L
30	Localized, NOS	NA	L	L
40	Meningeal tumor infiltrates nerve Nerve tumor infiltrates meninges (dura)	NA	RNOS	RNOS
50	Adjacent connective/soft tissue Adjacent muscle	NA	RNOS	RNOS
60	Brain, for cranial nerve tumors Major blood vessel(s) Sphenoid and frontal sinuses (skull)	NA	RNOS	RNOS
70	Brain except for cranial nerve tumors Bone, other than skull Eye	NA	D	D
80	Further contiguous extension	NA	D	D
95	No evidence of primary tumor	NA	U	U
99	Unknown extension Primary tumor cannot be assessed Not documented in patient record	NA	U	U