ICD-10 Code B60.13 – Keratoconjunctivitis due to Acanthamoeba (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code B60.13 – Keratoconjunctivitis due to Acanthamoeba
What it is
This code identifies keratoconjunctivitis caused by Acanthamoeba, a protozoal infection of the cornea and conjunctiva. Use it when the record documents this specific organism as the cause.
Clinical signs
Common findings include eye pain, redness, tearing, photophobia, and blurred vision. Clinical features vary; refer to documentation, especially when corneal involvement, infiltrates, or contact lens–associated infection is noted.
When to use this code
Use B60.13 when the provider diagnoses keratoconjunctivitis due to Acanthamoeba and documents the organism clearly. It is appropriate for confirmed or clinically documented Acanthamoeba eye infection affecting the cornea and conjunctiva. If the note only says “infectious keratitis,” check documentation for the specific cause.
Do not use for
Do not use this code for non-Acanthamoeba keratoconjunctivitis or for nonspecific conjunctivitis alone. If the organism is not stated or the diagnosis is uncertain, check documentation.
Coding tip
Code the organism-specific diagnosis only when Acanthamoeba is documented; otherwise, assign the more specific confirmed eye infection code available.