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H60.3 – Diffuse Otitis Externa: Causes & Treatment
H60.3 is the ICD-10 code for diffuse otitis externa, a widespread inflammation of the outer ear canal causing pain, itching, and ear discharge.
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H60.3 is the ICD-10 code for diffuse otitis externa, a widespread inflammation of the outer ear canal causing pain, itching, and ear discharge.
What is H60.3 – Diffuse Otitis Externa?
H60.3 is the ICD-10 diagnosis code for diffuse otitis externa, a widespread inflammation of the skin lining the external ear canal. Unlike localized forms such as a furuncle, this condition affects the entire ear canal and is often associated with significant pain. It is commonly known as swimmer's ear due to its frequent association with water exposure.
Causes
Diffuse otitis externa typically results from a combination of moisture, mechanical irritation, and infection. The most common contributing factors include:
- Frequent water exposure (e.g., swimming, diving)
- Trauma from cotton swabs or other objects inserted into the ear
- Bacterial infections, most commonly caused by Pseudomonas aeruginosa or Staphylococcus aureus
- Fungal infections (otomycosis), often involving Aspergillus or Candida species
- Underlying skin conditions such as eczema, psoriasis, or seborrheic dermatitis
- Use of hearing aids or in-ear headphones
- Allergic reactions to cosmetics, hairspray, or ear drops
Symptoms
Symptoms of diffuse otitis externa range from mild to severe and may include:
- Ear pain, particularly when pulling on the outer ear or during chewing
- Itching and burning sensation in the ear canal
- Redness and swelling of the ear canal skin
- Ear discharge (serous, purulent, or mucous)
- Feeling of fullness or blockage in the ear
- Temporary hearing reduction due to swelling or secretions
- In severe cases: fever and swollen lymph nodes
Diagnosis
Diagnosis is typically made by an ear, nose, and throat (ENT) specialist. The evaluation includes:
- Otoscopy: direct examination of the ear canal using an otoscope to assess redness, swelling, and discharge
- Microbiological swab culture in recurrent or treatment-resistant cases
- Exclusion of otitis media (middle ear infection) by assessing the integrity of the eardrum
Treatment
Pharmacological Therapy
Treatment depends on the severity and causative organism:
- Topical antibiotics as ear drops (e.g., ciprofloxacin, neomycin) for bacterial infections
- Topical antifungals (e.g., clotrimazole) for fungal infections
- Topical corticosteroids to reduce inflammation and itching
- Analgesics such as ibuprofen or paracetamol for pain relief
- Systemic antibiotics in cases of severe or spreading infection
General Measures
- Keep the ear dry and avoid water exposure during treatment
- Avoid inserting cotton swabs or other objects into the ear
- Use ear plugs when swimming
- Avoid wearing hearing aids during the treatment period if possible
Prognosis
With consistent treatment, diffuse otitis externa typically resolves completely within 7 to 14 days. Without appropriate therapy or with repeated exposure to triggering factors, the condition may become chronic. Patients with diabetes mellitus or immunodeficiency are at risk of developing malignant (necrotizing) otitis externa, a serious complication requiring intensive medical management.
References
- Rosenfeld RM et al. – Clinical Practice Guideline: Acute Otitis Externa. Otolaryngology – Head and Neck Surgery, 2014.
- World Health Organization – ICD-10 Version 2019, Code H60.3: Other infective otitis externa.
- Schaefer P, Baugh RF – Acute Otitis Externa: An Update. American Family Physician, 2012;86(11):1055–1061.
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