A18.6
Tuberculosis of (inner) (middle) ear
Clinical Classification Guidelines
Inclusion Terms
- Tuberculous otitis media
Excludes Type 2
- tuberculosis of external ear (A18.4)
- tuberculous mastoiditis (A18.03)
Medical Intelligence & Overview
Tuberculosis of the ear, also known as tuberculous otitis media, is a rare infectious condition caused by the bacteria Mycobacterium tuberculosis. This infection primarily affects the inner and middle ear, leading to inflammation and potential damage if not properly diagnosed and treated. Although uncommon, it is important to recognize the signs and understand the nature of this disease to ensure timely management.
Causes & Symptoms
Clinical Causes: Spread from primary tuberculosis infection in the lungs or other parts of the body Infection via the airway or bloodstream reaching the ear Reactivation of dormant tuberculosis bacteria within ear tissues In rare cases, direct inoculation through trauma or surgery involving the ear
Key Symptoms: Persistent ear discharge (otorrhea), often foul-smelling Hearing loss, which can be gradual or sudden Ear pain or discomfort Hearing difficulty and possible dizziness or balance issues Swelling or lumps near the ear Signs of systemic tuberculosis, such as fever, weight loss, and fatigue in some cases
Diagnostic & Treatment
Diagnosis Path: Diagnosis involves a combination of clinical examination, medical history, and laboratory tests. Otoscopic examination may reveal abnormal ear tissue or perforation. Imaging studies like MRI or CT scans can help assess the extent of the infection. Microbiological analysis, including samples of ear discharge or tissue biopsies, can confirm the presence of Mycobacterium tuberculosis. Additional tests such as a tuberculin skin test or interferon-gamma release assays (IGRAs) may support the diagnosis.
Treatment Protocols: Treatment typically involves a prolonged course of anti-tuberculous medications, which are specially tailored to combat tuberculosis bacteria. The therapy duration often lasts at least 6 months, sometimes longer, depending on severity. Managing symptoms with supportive care, such as pain relief and ear hygiene, is also important. In some cases, surgical intervention might be necessary to remove damaged tissue or fluid accumulation. Close medical monitoring ensures effective treatment and reduces the risk of complications.
Clinical Advice & FAQs
Billing Guidance
Is A18.6 a billable ICD-10 code?
Yes, A18.6 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report A18.6?
Clinical documentation must specify the nature of Tuberculosis of (inner) (middle) ear and any associated comorbidities for accurate reporting.
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