The following is a list of the "C" codes for MeSH

Mesh

Mesh consists of semi-permeable barrier made of connected strands of metal, fiber, or other flexible/ductile material. Mesh is similar to web or net in that it has many attached or woven strands.-Types of mesh:...

. It is a product of the United States National Library of Medicine

United States National Library of Medicine

The United States National Library of Medicine , operated by the United States federal government, is the world's largest medical library. Located in Bethesda, Maryland, the NLM is a division of the National Institutes of Health...

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Source for content is here. (File "2006 MeSH Trees".)

--- hearing disorders

--- hearing loss --- deafness --- hearing loss, bilateral --- hearing loss, conductive --- hearing loss, functional --- hearing loss, high-frequency --- hearing loss, mixed conductive-sensorineural --- hearing loss, sensorineural --- hearing loss, central --- hearing loss, noise-induced --- presbycusis

Presbycusis

Presbycusis, or age-related hearing loss, is the cumulative effect of aging on hearing. Also known as presbyacusis, it is defined as a progressive bilateral symmetrical age-related sensorineural hearing loss. The hearing loss is most marked at higher frequencies...

 --- usher syndromes --- hearing loss, sudden --- hearing loss, unilateral --- hyperacusis

Hyperacusis

Hyperacusis is a health condition characterized by an over-sensitivity to certain frequency ranges of sound...

 --- tinnitus

Tinnitus

Tinnitus |ringing]]") is the perception of sound within the human ear in the absence of corresponding external sound.Tinnitus is not a disease, but a symptom that can result from a wide range of underlying causes: abnormally loud sounds in the ear canal for even the briefest period , ear...

--- labyrinth diseases

--- cochlear diseases --- endolymphatic hydrops --- meniere's disease

Ménière's disease

Ménière's disease is a disorder of the inner ear that can affect hearing and balance to a varying degree. It is characterized by episodes of vertigo and tinnitus and progressive hearing loss, usually in one ear. It is named after the French physician Prosper Ménière, who, in an article published...

 --- labyrinthitis

Labyrinthitis

Labyrinthitis is an inflammation of the inner ear, and a form of unilateral vestibular dysfunction. It derives its name from the labyrinths that house the vestibular system . Labyrinthitis can cause balance disorders....

 --- vestibular diseases --- vertigo

Vertigo (medical)

Vertigo is a type of dizziness, where there is a feeling of motion when one is stationary. The symptoms are due to a dysfunction of the vestibular system in the inner ear...

--- otitis

Otitis

Otitis is a general term for inflammation or infection of the ear, in both humans and other animals.It is subdivided into the following:*Otitis externa, external otitis, or "swimmer's ear" involves the outer ear and ear canal. In external otitis, the ear hurts when touched or pulled.*Otitis media...

--- otitis externa

Otitis externa

Otitis externa is an inflammation of the outer ear and ear canal. Along with otitis media, external otitis is one of the two human conditions commonly called "earache". It also occurs in many other species. Inflammation of the skin of the ear canal is the essence of this disorder...

 --- otitis media

Otitis media

Otitis media is inflammation of the middle ear, or a middle ear infection.It occurs in the area between the tympanic membrane and the inner ear, including a duct known as the eustachian tube. It is one of the two categories of ear inflammation that can underlie what is commonly called an earache,...

 --- mastoiditis

Mastoiditis

Mastoiditis is an infection of mastoid process, the portion of the temporal bone of the skull that is behind the ear which contains open, air-containing spaces. It is usually caused by untreated acute otitis media and used to be a leading cause of child mortality. With the development of...

 --- otitis media with effusion --- otitis media, suppurative

--- retrocochlear diseases

--- auditory diseases, central --- auditory perceptual disorders --- hearing loss, central --- vestibulocochlear nerve diseases --- neuroma, acoustic --- neurofibromatosis 2 --- vestibular neuronitis

Vestibular neuronitis

Vestibular neuronitis, also called Vestibular neuritis, can be a paroxysmal, single attack of vertigo, a series of attacks, or a persistent condition which diminishes over three to six weeks. It is a type of unilateral vestibular dysfunction and may be associated with nausea, vomiting, and...

--- tympanic membrane perforation

--- voice disorders

--- aphonia

Aphonia

Aphonia is the inability to speak. It is considered more severe than dysphonia. A primary cause of aphonia is bilateral disruption of the recurrent laryngeal nerve, which supplies nearly all the muscles in the larynx...

 --- hoarseness

--- nose neoplasms

--- paranasal sinus neoplasms --- maxillary sinus neoplasms

--- paranasal sinus diseases

--- paranasal sinus neoplasms --- maxillary sinus neoplasms --- sinusitis

Sinusitis

Sinusitis is inflammation of the paranasal sinuses, which may be due to infection, allergy, or autoimmune issues. Most cases are due to a viral infection and resolve over the course of 10 days...

 --- ethmoid sinusitis --- frontal sinusitis --- maxillary sinusitis --- sphenoid sinusitis

--- rhinitis

Rhinitis

Rhinitis , commonly known as a stuffy nose, is the medical term describing irritation and inflammation of some internal areas of the nose. The primary symptom of rhinitis is nasal dripping. It is caused by chronic or acute inflammation of the mucous membrane of the nose due to viruses, bacteria or...

--- rhinitis, allergic, perennial --- rhinitis, allergic, seasonal --- rhinitis, atrophic --- rhinitis, vasomotor

--- neuroma, acoustic

--- neurofibromatosis 2

--- nose neoplasms

--- paranasal sinus neoplasms --- maxillary sinus neoplasms

--- pharyngeal neoplasms

--- hypopharyngeal neoplasms --- nasopharyngeal neoplasms --- oropharyngeal neoplasms --- tonsillar neoplasms

--- nasopharyngeal diseases

--- nasopharyngeal neoplasms --- nasopharyngitis

--- pharyngeal neoplasms

--- hypopharyngeal neoplasms --- nasopharyngeal neoplasms --- oropharyngeal neoplasms --- tonsillar neoplasms