ICD-10 Code H16.231 – Neurotrophic keratoconjunctivitis, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H16.231 – Neurotrophic keratoconjunctivitis, right eye
What it is
This code identifies neurotrophic keratoconjunctivitis affecting the right eye. It means the cornea and conjunctiva are inflamed because of reduced corneal sensation or nerve dysfunction.
Clinical signs
Clinical features vary; refer to documentation. Common findings include corneal epithelial defects, reduced or absent corneal sensation, punctate staining, and delayed healing in the right eye.
When to use this code
Use H16.231 when the provider documents neurotrophic keratoconjunctivitis specifically in the right eye. Apply it for confirmed unilateral disease, whether described as corneal anesthesia, neurotrophic keratitis, or related keratoconjunctivitis. Check documentation if laterality is unclear.
Do not use for
Do not use this code for left-eye or bilateral disease, or for nonspecific keratitis without neurotrophic involvement. If the record does not specify the right eye, check documentation.
Coding tip
Always verify laterality and the provider’s exact wording before assigning H16.231.