Neurotrophic keratoconjunctivitis, left eye

This code describes a condition affecting the left eye characterized by corneal and conjunctival damage due to impaired corneal innervation. It results from a diminished or absent corneal sensation, leading to a compromised ocular surface and increased susceptibility to injury and infection.

Use this code when documentation specifies neurotrophic keratoconjunctivitis affecting the patient's left eye. This diagnosis is typically supported by findings of reduced corneal sensitivity, epithelial defects, and a history of conditions like herpes zoster ophthalmicus, trigeminal nerve damage, or certain systemic neuropathies.

• Ensure laterality is clearly documented as "left eye" to support this specific code.
• Distinguish from other forms of keratoconjunctivitis (e.g., allergic, infectious) which have different underlying etiologies and corresponding codes.
• Consider coding any underlying systemic conditions or neurological disorders that contribute to the neurotrophic state as secondary diagnoses.