Hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral nervous system structures.

Synonyms: Nervous System Degenerative Diseases, Degenerative Condition, Neurologic, Neurodegenerative Diseases, Degenerative Neurologic Disorder, Degenerative Diseases, Spinal Cord, Neurologic Disorder, Degenerative, Neurologic Degenerative Diseases, Neurologic Diseases, Degenerative, Degenerative Neurologic Disease, Degenerative Conditions, Neurologic, Degenerative Neurologic Diseases, Neurologic Degenerative Disease, Neurodegenerative Disease, Degenerative Neurologic Disorders, Degenerative Diseases, Central Nervous System, Neurologic Disorders, Degenerative, Neurologic Degenerative Conditions, Degenerative Diseases, Nervous System, Neurologic Degenerative Condition, Degenerative Diseases, Neurologic, Neurodegenerative Disorder, Neurodegenerative Disorders, Neurologic Disease, Degenerative