Corneal abscess, left eye

This code signifies a localized collection of pus within the corneal tissue of the left eye, typically caused by bacterial, fungal, or parasitic infection. It presents as an opaque, often painful lesion on the cornea, potentially leading to significant vision impairment.

Apply this code when documentation explicitly states a corneal abscess affecting the left eye. Supporting documentation should include findings from an ophthalmological examination confirming the presence and location of the abscess. This code is appropriate for both initial and subsequent encounters related to the abscess.

• Ensure laterality is accurately documented and coded; distinguish between left, right, and bilateral involvement.
• Look for documentation of the causative organism (e.g., bacterial, fungal) to potentially assign an additional code for the infection.
• Do not confuse with corneal ulcer without abscess (H16.0-) or other forms of keratitis.