NLM Classification Schedule WL

QS QT QU QV QW QX QY QZ W WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WQ WR WS WT WU WV WW WX WY WZ

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WL Nervous System
	Classify general works on the nervous system and its diseases in children in WS 340. Classify neurological nursing in WY 160.5. Classify works on nursing of patients with specific diseases in WY also.
	WL 1-102 Reference Works. General Works
	WL 102.5-102.9 Neurons
	WL 103-108 Psychophysiology. Neurosciences
	WL 140-160 Diseases. Examination and Diagnosis (General)
	WL 200-405 Central Nervous System. Disorders. Therapeutics
	WL 200-302 Central Nervous System (General)
	WL 307-335 Brain. Localization of Function
	WL 340-346 Neurologic Manifestations
	WL 348-362 Brain Diseases
	WL 368-370 Brain Surgery
	WL 385-390 Epilepsy. Movement Disorders
	WL 400-405 Spinal Cord
	WL 500-544 Peripheral Nerves
	WL 600-610 Autonomic Nervous System
	WL 700-710 Sense Organs
	Reference Works. General Works

WL 1	Societies (Cutter from name of society) (Used for both monographs and serials)
	Includes ephemeral membership lists issued serially or separately. Classify substantial lists with directories. Classify annual reports, journals, etc. in W1.
	Collected works (General)
WL 5	By several authors
WL 7	By individual authors

WL 9	Addresses. Essays. Lectures (General)

WL 11	History (Table G)
WL 11.1	General coverage (Not Table G)

WL 13	Dictionaries. Encyclopedias (Used for both monographs and serials)

WL 15	Classification. Terminology (Used for both monographs and serials)

WL 16	Tables. Statistics (Used for both monographs and serials)

WL 17	Atlases. Pictorial works
	Classify atlases limited to a particular part of the system here also.

WL 18	Education
	Classify here works about education.

WL 18.2	Educational materials (Used for both monographs and serials)
	Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, catalogs, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

WL 19	Schools, departments, and faculties of neurology (Used for both monographs and serials)

WL 20	Research (General)
	Classify here works about research in general. Classify works about research on a particular subject by subject.

WL 21	Neurology as a profession. Ethics. Peer review

WL 22	Directories (Table G) (Used for both monographs and serials)
WL 22.1	General coverage (Not Table G) (Used for both monographs and serials)
	Laboratories, institutes, etc.
WL 23	Collective
WL 24	Individual (Cutter from name of institution)

WL 25	Laboratory manuals. Technique

WL 26	Equipment and supplies (e.g., For electroencephalography)
	Classify catalogs in W 26.

WL 26.5	Informatics. Automatic data processing. Computers (General)
	Classify works on use for special subjects by subject.
	Hospitals, clinics, dispensaries, etc.
WL 27	Collective (Table G)
WL 27.1	General coverage (Not Table G)
WL 28	Individual (Cutter from name of hospital) (Table G)
	Museums, exhibitions, etc.
WL 28.5	Collective
WL 28.6	Individual (Cutter from name of museum, etc.)

WL 30	Administration of services (e.g., Services for the epileptic)

WL 32	Laws (Table G) (Used for both monographs and serials)
WL 32.1	General coverage (Not Table G) (Used for both monographs and serials)
WL 33	Discussion of law (Table G) (Used for both monographs and serials)
WL 33.1	General coverage (Not Table G) (Used for both monographs and serials)

WL 39	Handbooks. Resource guides (Used for both monographs and serials)

WL 100	General works
	Classify works on specialty and on the specialty and diseases here. Classify works on diseases alone in WL 140.

WL 101	Anatomy. Histology. Embryology. Abnormalities (General)

WL 102	Physiology (General)
	Neurons

WL 102.5	Neurons
WL 102.7	Motor neurons
WL 102.8	Synapses

WL 102.9	Nerve endings
	Psychophysiology. Neurosciences

WL 103	Psychophysiology (General)
	Classify works on specific topics by subject. See MeSH tree structure F2 and Index to this Classification.

WL 103.5	Neuropsychology

WL 103.7	Psychoneuroimmunology

WL 104	Neurochemistry

WL 105	Neuroendocrinology

WL 106	Reflexes
	Classify works on conditioned reflexes, etc., in BF 319-319.5.

WL 108	Physiology of sleep
	Classify works on disorders of sleep WM 188.
	Diseases. Examination and Diagnosis (General)

WL 140	Nervous system diseases (General)

WL 141	Neurologic examination. Diagnosis. Diagnostic methods. Diagnostic imaging of the brain (e.g., Ventriculography)
	Classify works on pediatric neuroradiography in WS 340.

WL 150	Electroencephalography. Monitoring (General)

WL 154	Echoencephalography

WL 160	Nervous system neoplasms (General)
	Central Nervous System. Disorders. Therapeutics Central Nervous System (General)

WL 200	Meninges. Blood-brain barrier
	Classify works on listeria meningitis in WC 242; on meningococcal meningitis in WC 245; on viral meningitis in WC 540.

WL 203	Cerebrospinal fluid
	Cf. QY 220 Clinical analysis; WB 377 Spinal, cisternal and ventricular puncture.

WL 300	General works (Include works on brain alone)
	Cf. WL 348 Brain diseases. Classify works on diagnosis in WL 141 General; WL 150 Electroencephalography; WL 154 Echoencephalography; WL 405 Myelography or in a specific number for the disorder.

WL 302	Cerebrovascular circulation
	Cf. WG 595.C37 Cerebral arteries.
	Brain. Localization of Function

WL 307	Cerebrum. Cerebral cortex. Telencephalon
	Classify here works on basal ganglia, corpus callosum and cerebral ventricles.

WL 310	Brain stem

WL 312	Diencephalon. Thalamus

WL 314	Limbic system

WL 320	Cerebellum

WL 330	Cranial nerves (General or not elsewhere classified)

WL 335	Localization of function. Cerebral dominance. Brain mapping
	Neurologic Manifestations

WL 340	Neurologic manifestations (General or not elsewhere classified)
	Cf. WL 390 Movement disorders; WW 460 Neurologic manifestations of eye disease.
WL 340.2	Communication disorders. Speech-language pathology
	Classify here all works on communication disorders except those of psychogenic origins. Classify communication disorders of psychogenic origins in WM 475-475.6.
WL 340.5	Aphasia
	Classify works on aphasia of psychogenic origin in WM 475.5.
WL 340.6	Dyslexia
	Classify works on dyslexia of psychogenic origin in WM 475.6.
WL 341	Consciousness. Unconsciousness
WL 342	Headache. Headache Disorders (General)
WL 344	Migraine. Vascular headache.
WL 346	Paralysis (General or not elsewhere classified)
	Brain Diseases

WL 348	Brain diseases
WL 350	Congenital (General or not elsewhere classified)
WL 351	Inflammatory (e.g., Abscess. Encephalitis. Encephalomyelitis)
	Cf. WC 542 Arbovirus encephalitis.
WL 354	Traumatic (Concussion. Brain damage)
WL 355	Cerebrovascular disorders (e.g., Cerebral hemorrhage)
WL 358	Brain neoplasms. Central nervous system (General)
WL 359	Degenerative (e.g., Parkinsonism)
WL 360	Multiple sclerosis
WL 362	Kernicterus
	Brain Surgery

WL 368	Brain surgery. Neurosurgery (General)
	Classify works on sympathectomy in WL 610.
WL 370	Psychosurgery
	Epilepsy. Movement Disorders

WL 385	Epilepsy

WL 390	Movement disorders (General or not elsewhere classified)
	Classify works on muscular diseases in WE 550-559; on psychomotor disorders in WM 197.
	Spinal Cord

WL 400	Spinal cord. Spinal nerves (General or not elsewhere classified).
WL 405	Myelography
	Peripheral Nerves

WL 500	General works
	Cf. WL 330 Cranial nerves; WL 400 Spinal nerves.

WL 544	Neuritis. Neuralgia
	Autonomic Nervous System

WL 600	General works
	Classify here works on specific autonomic nerve groups, not included below.

WL 610	Sympathetic nervous system. Parasympathetic nervous system
	Classify works on cranial nerves in WL 330.
	Sense Organs

WL 700	General works
	Classify works on specific sense organs with the system involved.

WL 702	Psychophysics. Sensation (General)
	Do not confuse with psychophysiology WL 103.

WL 704	Pain
	Classify works on individual sense organ and/or pain relating to it with the organ.

WL 705	Perception. Perceptual distortion
	Classify works on psychological aspects of perception in BF 311. Classify works on perceptual distortion and disorders associated with psychoses in WM 204. Classify works on visual perception in WW 105; on auditory perception in WV 272, etc.

WL 710	Sensation disorders (General or not elsewhere classified)
	Cf. WR 280 for sensory disorders of the skin.