| WL 100 - General Works | WL 330 - Cranial Nerves (General or not elsewhere classified) | WL 354 - Traumatic | WL 544 - Neuritis. Neuralgia |
| WL 101 - Anatomy. Histology. Embryology. Abnormalities (General) | WL 340 - Neurologic manifestations (General or not elsewhere classified) | WL 355 - Cerebrovascular disorders | WL 600 - Autonomic Nervous System |
| WL 102 - Physiology (General) | WL 340.2 - Communicative Disorders. Speech-language pathology | WL 358 - Neoplasms of the brain and of the central nervous system in general | WL 610 - Sympathetic nervous system. Parasympathetic nervous system |
| WL 103 - Psychophysiology (General) | WL 340.5 - Aphasia | WL 359 - Degenerative | WL 700 - Sense Organs (General Works) |
| WL 140 - Nervous System Diseases (General) | WL 340.6 - Dyslexia | WL 368 - Brain Surgery. Neurosurgery (General) | WL 702 - Psychophysics |
| WL 150 - Electroencephalography. Monitoring (General) | WL 341 - Consciousness. Unconsciousness | WL 370 - Psychosurgery | WL 704 - Pain |
| WL 160 - Nervous System Neoplasms | WL 342 - Headache | WL 385 - Epilepsy | WL 705 - Perception. Perceptual Distortion |
| WL 200 - Meninges. Blood-brain barrier | WL 346 - Paralysis (General or not elsewhere classified) | WL 390 - Movement Disorders (General or not elsewhere classified) | WL 710 - Sensation disorders (General or not elsewhere classified) |
| WL 300 - Central Nervous System (General Works) | WL 348 - Diseases of the brain | WL 400 - Spinal Cord. Spinal Nerves (General or not elsewhere classified). Nerve roots. Pyramidal tracts | |
| WL 310 - Brain Stem | WL 350 - Congenital (General or not elsewhere classified) | WL 405 - Myelography | |
| WL 320 - Cerebellum | WL 351 - Inflammatory | WL 500 - Peripheral Nerves - General Works |
Classification Scheme reproduced by kind permission of the National Library of Medicine