A18.52
Tuberculous keratitis
Clinical Classification Guidelines
Inclusion Terms
- Tuberculous interstitial keratitis
- Tuberculous keratoconjunctivitis (interstitial) (phlyctenular)
Medical Intelligence & Overview
Tuberculous keratitis is a rare eye condition caused by tuberculosis bacteria infecting the cornea. It is a form of infectious keratitis that can lead to significant eye discomfort and vision problems if not diagnosed and treated promptly. This condition often presents as part of a broader tuberculosis infection or may occur in individuals with a weakened immune system. Recognizing the signs and understanding the causes are essential steps in managing this condition.
Causes & Symptoms
Clinical Causes: Mycobacterium tuberculosis bacteria infecting the eye tissue Spread from a nearby tuberculosis infection, such as lymph nodes or lungs Contamination through contact with infectious materials Immune response complications leading to localized inflammation
Key Symptoms: Redness of the eye Eye pain or discomfort Blurred vision or visual disturbances Sensitivity to light (photophobia) Tearing or watery eyes Presence of corneal ulcers or infiltrates Possible loss of corneal clarity if condition worsens
Diagnostic & Treatment
Diagnosis Path: The diagnosis involves a comprehensive eye examination to observe corneal changes. Additional tests may include corneal smears or biopsies to detect tuberculosis bacteria, blood tests for tuberculosis exposure, chest X-rays to check for lung involvement, and slit-lamp microscopy to assess the extent of corneal damage. Corneal tissue analysis helps confirm the presence of tuberculosis-related infection.
Treatment Protocols: Management typically involves a combination of anti-tuberculosis medications, including isoniazid, rifampin, ethambutol, and pyrazinamide, administered over an extended period. Topical treatments such as antibiotic eye drops may be used to reduce inflammation and control infection. Regular follow-up with an ophthalmologist is essential to monitor healing and prevent complications. In severe cases, surgical intervention might be necessary to repair corneal damage.
Clinical Advice & FAQs
Billing Guidance
Is A18.52 a billable ICD-10 code?
Yes, A18.52 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.
Documentation
How do I report A18.52?
Clinical documentation must specify the nature of Tuberculous keratitis and any associated comorbidities for accurate reporting.
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