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
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