disease has major feature Cerebral degeneration central nervous system disorder neurodegenerative disease cerebral degeneration disease DOID:1289 NCIT:C4802 brain degeneration MEDGEN:17999 MONDO:0005559 ICD9:349.89 degenerative disease EFO:0005772 central nervous system neurodegenerative disorder UMLS:C0027746 A disorder of the central nervous system characterized by gradual and progressive loss of neural tissue and neurologic function. degenerative disorder of central nervous system Editor notes: DO treats this as two diseases central nervous system degenerative disorder MESH:D019636 SCTID:80690008