Angular blepharoconjunctivitis, left eye

This code describes an inflammatory condition affecting both the eyelid margins (blepharitis) and the conjunctiva (conjunctivitis) of the left eye, specifically characterized by its angular presentation, meaning it primarily affects the corners of the eye. This often involves redness, irritation, and discharge concentrated at the medial or lateral canthus.

Use this code when documentation specifies angular blepharoconjunctivitis affecting the patient's left eye. This diagnosis is typically supported by an ophthalmologist's or optometrist's examination findings detailing inflammation, scaling, or maceration at the canthi, along with conjunctival injection.

• Ensure the documentation clearly specifies "angular" to differentiate from other forms of blepharoconjunctivitis.
• Verify the laterality is explicitly stated as "left eye" to avoid incorrect coding.
• Consider co-reporting with codes for underlying causes, such as bacterial infection (e.g., Moraxella lacunata), if identified and documented.