Classification 2021 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. 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. Biochemistry. Embryology. Abnormalities

Otorhinolaryngologic diseases (General)

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

ENT signs, symptoms, and diagnosis. Monitoring

ENT surgery

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

Intracranial complications of ENT diseases

Otorhinolaryngologic neoplasms (General)

General works

Anatomy. Physiology

Cf. WV 272 for physiology and testing of hearing.

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. Foreign bodies. Cerumen

Tympanic membrane

Middle ear. Eustachian tube. Petrous bone

Otitis media (including aerotitis)

Mastoid region


Vestibular apparatus

Meniere's disease


Audiology. Hearing. Hearing disorders. Deafness

Deafness and other hearing disorders in children

Physiology of hearing. Auditory perception. Tinnitus. Function tests

Hearing devices. Cochlear implants. Cochlear implantation

Treatment of deafness



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

External nose


Nasal septum

[This number not used]

Classify nasal fossae, turbinates in WV 301.


Cf. WC 510 Common cold.

Paranasal sinuses





General works

Classify works on nasopharyngeal diseases in WV 410.

Anatomy. Physiology

Pharynx. Uvula. Palate

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

Palatine Tonsil. Adenoids

Cleft lip. Cleft palate

General works (including speech and organic disorders)

Classify works on neurological speech disorders in WL 340.2-340.6; on psychogenic speech disorders in WM 475-475.6.

Anatomy. Physiology. Physiology of speech




Vocal cords


Surgery. Laryngectomy. Alaryngeal voice production

Classify works on artificial larynx here.