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H73.8 - Other Specified Disorders of the Eardrum

H73.8 is an ICD-10 diagnosis code for other specified disorders of the tympanic membrane, such as thickening, atrophy, or scarring of the eardrum.

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Things worth knowing about "H73.8"

H73.8 is an ICD-10 diagnosis code for other specified disorders of the tympanic membrane, such as thickening, atrophy, or scarring of the eardrum.

What Does the ICD-10 Code H73.8 Mean?

The ICD-10 code H73.8 refers to other specified disorders of the tympanic membrane (eardrum) that do not fall under more common standard diagnoses. The tympanic membrane is a thin, delicate membrane that separates the outer ear canal from the middle ear and plays a central role in sound transmission. Structural changes to this membrane can impair hearing and cause various complaints.

Causes

The disorders of the tympanic membrane coded under H73.8 can have a variety of causes:

Chronic inflammation: Recurrent or persistent middle ear infections can structurally alter the eardrum over time.
Traumatic injury: Pressure changes (e.g., during diving or flying) or direct trauma can lead to structural changes in the eardrum.
Scarring: Healed eardrum perforations or previous ear surgeries may leave scar tissue or thickening.
Tympanosclerosis: Calcification or hardening of the eardrum as a consequence of chronic inflammation.
Atrophy: Thinning of the eardrum, commonly seen after repeated infections or prolonged stress on the membrane.

Symptoms

Symptoms associated with H73.8 disorders depend on the extent and nature of the change:

Hearing loss: Primarily conductive hearing loss, as the vibration capacity of the eardrum is reduced.
Tinnitus: Ringing, buzzing, or whistling sounds in the ear.
Sensation of pressure or fullness in the ear: A feeling of blockage or congestion.
Occasional ear pain: Especially during inflammatory episodes or alongside middle ear problems.
In some cases, no symptoms at all: Minor changes are often discovered incidentally during a routine ENT examination.

Diagnosis

Diagnosis is typically made by an ear, nose, and throat (ENT) specialist. The following examinations are used:

Otoscopy: Direct visual inspection of the eardrum using an otoscope to identify changes such as thickening, scarring, calcification, or atrophic areas.
Tympanometry: Measurement of eardrum mobility and middle ear pressure.
Audiometry: Hearing test to assess any hearing loss and determine its type (conductive or sensorineural).
Microscopic ear examination: Provides a more detailed assessment of structural changes in the tympanic membrane.

Treatment

Treatment depends on the underlying change and the associated symptoms:

Watchful waiting: For mild, asymptomatic changes, no active treatment may be necessary, but regular ENT check-ups are recommended.
Treatment of inflammation: Antibiotics or decongestants for accompanying middle ear infections.
Myringoplasty: A surgical procedure to repair or replace a damaged eardrum, particularly when there is a functionally significant defect.
Hearing aids: For permanent hearing loss that cannot be fully corrected by surgical means.
Tympanoplasty: A more extensive surgical reconstruction of the eardrum and middle ear structures for severe changes.

When to See a Doctor?

Affected individuals should consult an ENT specialist if they notice persistent hearing problems, tinnitus, a lasting sensation of pressure in the ear, or ear pain. Early diagnosis can help prevent secondary damage and preserve hearing function in the long term.

References

World Health Organization (WHO): International Statistical Classification of Diseases and Related Health Problems, 10th Revision (ICD-10). Geneva, 2019.
Probst, R., Grevers, G., Iro, H.: Basic Otorhinolaryngology - A Step-by-Step Learning Guide. Thieme Verlag, Stuttgart, 2006.
Lalwani, A.K.: Current Diagnosis and Treatment in Otolaryngology - Head and Neck Surgery. 3rd Edition, McGraw-Hill Education, New York, 2012.

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