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Classification 2024 Winter Edition

Worldwide source of medical classification resources



Note that the numbers WV 1-39 are assigned to works on the specialties otology, rhinology, and laryngology when treated individually as well as in combination.

  • Classify works on otolaryngological nursing and nursing of patients with specific diseases of the ear, nose, or throat in WY 158.5.

Organizations. Societies (General or not elsewhere classified) (Cutter from name of organization or society) (Table-G)
(Monographs and Serials)

Includes membership lists and administrative reports issued serially or separately. Classify directories in WV 22. Classify other serials issued by societies in W1. For academies and institutes, see WV 23-24.

Collected works by several authors

Collected works by individual authors

Addresses. Essays. Lectures

History (Table-G)

General coverage (Not Table-G)

Dictionaries. Encyclopedias
(Monographs and Serials)

Classification. Terminology
(Monographs and Serials)

Tables. Statistics. Surveys (Table-G)
(Monographs and Serials)

General coverage (Not Table-G)
(Monographs and Serials)

Atlases. Pictorial works

Classify here also atlases on a specific organ.


Classify here works about education.

Educational materials
(Monographs and Serials)

Classify here educational materials, e.g., outlines, questions and answers, programmed instruction, computer-assisted instruction, etc., regardless of format. Classify textbooks, regardless of format, by subject.

Schools, departments, and faculties of otolaryngology (Table-G)
(Monographs and Serials)

Include here works on the history of schools. Classify courses of study, catalogs, etc., in W 19.5.

General coverage (Not Table-G)
(Monographs and Serials)

Research (General)

Classify here works about research in general. Classify works about research on a particular subject by subject.

Otolaryngology as a profession. Audiology as a profession. Ethics. Peer review

Classify works on the specialty alone here. Classify works on both the specialty and diseases in WV 100.

Directories (Table-G)
(Monographs and Serials)

General coverage (Not Table-G)
(Monographs and Serials)

Collective laboratories, academies, institutes, etc.

Individual laboratories, academies, institutes, etc. (Cutter from name of institution)

Laboratory manuals. Technique

Equipment and supplies

Classify catalogs in W 26.

Informatics. Electronic data processing. Computers (General)

Classify works on use for special subjects by subject.

Collective hospitals, clinics, dispensaries, etc. (Table-G)

General coverage (Not Table-G)

Individual hospitals, clinics, dispensaries, etc. (Cutter from name of hospital) (Table-G)

Collective museums, exhibitions, etc.

Individual museums, exhibitions, etc. (Cutter from name of museum, etc.) (Table-G)

Laws. Estimation of disability for compensation (Table-G)
(Monographs and Serials)

General coverage (Not Table-G)
(Monographs and Serials)

Discussion of law (Table-G)
(Monographs and Serials)

General coverage (Not Table-G)
(Monographs and Serials)

Handbooks. Resource guides
(Monographs and Serials)

General works

Classify works on specialty and on the specialty and diseases here. Classify works on diseases alone in WV 140.

Anatomy. Physiology. Embryology. Abnormalities (General)

Classify works on specific organs with the organ.

Otorhinolaryngologic diseases (General)

Classify works on both the specialty and diseases in WV 100.

Examination. Diagnosis. Diagnostic methods. Monitoring (General)

Otorhinolaryngologic surgical procedures

Classify works on surgery of a particular organ with the organ.

Complications of otorhinolaryngologic diseases

Otorhinolaryngologic neoplasms (General)

General works

Anatomy. Physiology (General)

Classify works on anatomy and physiology of the ear in combination with the nose or throat in WV 101. Classify works on physiology of hearing in WV 268. Classify works on testing of hearing in WV 272.  

Examination. Diagnosis. Diagnostic methods (General)

Ear diseases (General or not elsewhere classified)

Classify diseases of specific parts of the ear with the part.

External ear

Ear canal. Cerumen

Tympanic membrane

Middle ear. Petrous bone

Otitis media


Inner ear

Vestibular labyrinth

Classify works on motion sickness in QT 162.M6.

Vestibular diseases

Meniere's disease


Vestibulocochlear physiological phenomena. Hearing

Hearing disorders (General)

Hearing disorders in children

Hearing tests

Hearing aids. Cochlear implants. Cochlear implantation

Correction of hearing impairment

[This number not used]

Classify works on mutism associated with deafness in WV 270.

Ear neoplasms

Classify works on neoplasms of specific parts of the ear with the part.

General works

Classify works on nasopharyngeal diseases in WV 410.

Anatomy. Physiology

Olfactory perception. Smell. Olfaction disorders

[This number not used]

Classify works on the nose in WV 300-WV 301.

Nasal surgical procedures

Nasal septum

[This number not used]

Classify nasal fossae, turbinates in WV 300-WV 301.


Cf. WC 510 Common cold.

Paranasal sinuses





[This number not used]

Classify general works on the pharyngeal region in WV 410.

[This number not used]

Classify works on anatomy and physiology of the pharynx in WV 410.

Pharynx. Palate

Classify works relating to respiration and the pharynx in WF 490.

Palatine tonsil. Adenoids

Cleft lip. Cleft palate


Classify works on vocal cords in WV 530. Classify surgery of the larynx in WV 540.

Laryngeal diseases (General or not elsewhere classified)

Voice. Voice disorders

Speech. Speech disorders

Classify here works on speech disorders associated with the larynx and other organs involved with speech; classify works on neurological speech disorders in WL 340.2-340.6; on psychogenic speech disorders in WM 475-475.6.


[This number not used]

Classify works on laryngitis in WV 485.


Vocal cords

Vocal cord dysfunction. Vocal cord paralysis

Surgery of the larynx. Alaryngeal speech

Classify works on artificial larynx here.