ICD-10 Code A18.54 – Tuberculous iridocyclitis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code A18.54 – Tuberculous iridocyclitis
What it is
A18.54 identifies iridocyclitis caused by Mycobacterium tuberculosis. Use it when the iris and ciliary body are inflamed in the setting of confirmed or documented tuberculosis.
Clinical signs
Typical findings include ocular inflammation such as eye pain, redness, photophobia, and blurred vision. Clinical features vary; refer to documentation for evidence linking the eye disease to tuberculosis.
When to use this code
Use this code when the record documents tuberculous anterior uveitis or iridocyclitis, or when the clinician clearly attributes the inflammation to tuberculosis. It may also apply when the ocular condition is part of systemic or disseminated TB. Check documentation if the cause is uncertain.
Do not use for
Do not use A18.54 for iridocyclitis without a documented tuberculous cause. Do not substitute it for other forms of uveitis, conjunctivitis, or general tuberculosis codes.
Coding tip
Confirm that tuberculosis is explicitly linked to the eye diagnosis before assigning A18.54.