ICD-10 Code H18.54 – Lattice Corneal Dystrophy (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H18.54 – Lattice corneal dystrophy
What it is
Lattice corneal dystrophy is an inherited corneal disorder marked by amyloid deposits in the cornea. It can cause progressive clouding and reduced vision over time.
Clinical signs
Typical findings include branching, lattice-like lines in the corneal stroma and recurrent corneal erosions. Vision may become blurred, and clinical features vary; refer to documentation.
When to use this code
Use H18.54 when the record clearly documents lattice corneal dystrophy as the diagnosis. It is appropriate for ophthalmology visits, problem lists, or referrals when the condition is confirmed. Check documentation if the note only mentions corneal opacity or dystrophy without specifying lattice type.
Do not use for
Do not use this code for nonspecific corneal scarring, keratitis, or other corneal dystrophies without documentation of lattice corneal dystrophy. Check documentation when the type is uncertain.
Coding tip
Code the documented subtype exactly; if the provider names lattice dystrophy, select H18.54 rather than a broader corneal dystrophy code.