ICD-10 Code A18.59 – Other Tuberculosis of Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A18.59 – Other tuberculosis of eye
What it is
This code identifies tuberculosis infection involving the eye when the condition is not classified elsewhere. Use it for ocular TB affecting eye structures, but not a more specific tuberculosis eye code.
Clinical signs
Findings may include ocular inflammation, redness, pain, blurred vision, or uveitis-like features. Clinical features vary; refer to documentation and confirm the provider has linked the eye disease to tuberculosis.
When to use this code
Use A18.59 when the record documents tuberculosis of the eye and the provider does not specify a more exact ocular site or subtype. It also fits cases described as “other” ocular tuberculosis in the assessment. Check documentation for laterality, if recorded, and any associated systemic TB diagnosis.
Do not use for
Do not use this code for non-tuberculous eye infections, inflammatory eye disease without TB confirmation, or routine ocular screening findings. If the chart does not clearly support tuberculosis as the cause, check documentation.
Coding tip
Link the eye condition to tuberculosis explicitly in the note before assigning A18.59.