Keratoconjunctivitis due to Acanthamoeba

This code identifies an infection of both the cornea and conjunctiva of the eye caused by the Acanthamoeba parasite. This protozoan infection can lead to severe ocular inflammation, pain, and potentially vision loss if not promptly treated. It is a serious condition often associated with contact lens wear.

Apply this code when documentation explicitly states a diagnosis of keratoconjunctivitis confirmed to be due to Acanthamoeba. This diagnosis is typically made based on clinical findings, patient history (e.g., contact lens use), and laboratory identification of the amoeba from corneal scrapings or biopsies.

• Ensure the documentation specifies both "keratoconjunctivitis" and "Acanthamoeba" as the causative agent.
• Do not use for other forms of keratoconjunctivitis (e.g., viral, bacterial) or for Acanthamoeba infections in other body sites.
• Consider sequencing this code as the primary diagnosis when it is the reason for the encounter and treatment.