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H65.0 – Acute Serous Otitis Media Explained

H65.0 is the ICD-10 code for acute serous otitis media, a non-purulent middle ear condition with fluid build-up. It commonly affects children and may cause temporary hearing loss.

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Things worth knowing about "H65.0"

H65.0 is the ICD-10 code for acute serous otitis media, a non-purulent middle ear condition with fluid build-up. It commonly affects children and may cause temporary hearing loss.

What is H65.0 – Acute Serous Otitis Media?

The ICD-10 code H65.0 refers to acute serous otitis media, a non-purulent (non-infectious) inflammation of the middle ear in which clear, watery (serous) fluid accumulates behind the eardrum without any bacterial pus formation. This condition is most common in young children but can also affect adults.

Causes

Acute serous otitis media typically results from impaired ventilation of the middle ear through the Eustachian tube. Common triggers include:

Viral upper respiratory tract infections (e.g., the common cold or influenza)
Allergic reactions
Enlarged adenoids
Sudden changes in air pressure (e.g., during flying or diving)
Anatomical characteristics of the Eustachian tube, especially in young children

Symptoms

Symptoms can vary in severity and may include:

Hearing loss or a muffled sensation in the ear
A feeling of pressure or fullness in the ear
Crackling or popping sounds in the ear
Mild ear discomfort or pain
In children: potential speech development delays if the condition becomes chronic

Unlike acute purulent otitis media, fever and severe pain are usually absent in the serous form.

Diagnosis

Diagnosis is made by a healthcare professional using the following methods:

Otoscopy: Visual examination of the eardrum (may appear retracted, dull, or yellowish)
Tympanometry: Assessment of eardrum mobility to detect fluid in the middle ear
Audiometry: Hearing tests, especially important in children

Treatment

In many cases, acute serous otitis media resolves on its own without specific treatment. Therapeutic options depend on the severity and duration of symptoms:

Conservative Measures

Decongestant nasal sprays to improve Eustachian tube ventilation
Antihistamines in cases with an allergic cause
Valsalva maneuver (equalizing ear pressure by exhaling gently against a closed mouth and nose)
Pain relief with ibuprofen or paracetamol if needed

Medical Treatment

Antibiotics only if a secondary bacterial infection is confirmed
Corticosteroids in selected cases

Surgical Options

Myringotomy (paracentesis): A small incision in the eardrum to drain accumulated fluid
Tympanostomy tubes (grommets): Small tubes inserted into the eardrum for long-term ventilation in recurrent cases

Prognosis

Acute serous otitis media generally resolves within a few weeks without lasting consequences. In children, regular follow-up examinations are recommended to detect and address any hearing impairment early.

References

World Health Organization (WHO): ICD-10 Classification of Mental and Behavioural Disorders – H65.0 Acute serous otitis media. Geneva, 2019.
Bhutta MF, et al. – Otitis media with effusion. BMJ 2014;349:g5606.
Rosenfeld RM, et al. – Clinical Practice Guideline: Otitis Media with Effusion. Otolaryngology–Head and Neck Surgery 2016;154(1 Suppl):S1–S41.

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