ICD-10 Code H18.541 – Lattice Corneal Dystrophy, Right Eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.541 – Lattice corneal dystrophy, right eye
What it is
Use this code for lattice corneal dystrophy affecting the right eye. It is a hereditary corneal disorder marked by amyloid deposits in the cornea that can reduce visual clarity over time.
Clinical signs
Typical findings include branching, lattice-like stromal lines and corneal haze, often with recurrent erosions or progressive blurred vision. Clinical features vary; refer to documentation.
When to use this code
Assign H18.541 when the provider documents lattice corneal dystrophy specifically in the right eye. Use it for confirmed diagnosis, follow-up visits, or evaluation of corneal changes tied to this condition.
If the record only states corneal dystrophy without laterality, you need a different code or better documentation. Check documentation before coding bilateral or unspecified eye involvement.
Do not use for
Do not use this code for other corneal dystrophies, nonspecific corneal opacity, or eye symptoms without a documented diagnosis. Do not guess laterality if the chart does not support it.
Coding tip
Verify the eye laterality in the assessment or problem list before assigning H18.541.