H18.543
BillableLattice corneal dystrophy, bilateral
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
Lattice corneal dystrophy is a genetic eye condition where abnormal protein deposits form a lattice-like pattern in the cornea (the clear front part of the eye), affecting both eyes. This can cause vision problems, corneal clouding, and recurrent eye irritation.
Coding Tips
- •Verify that the condition is documented as bilateral (affecting both eyes) before assigning code H18.543; if only one eye is affected, use H18.541 (right eye) or H18.542 (left eye) instead
- •This is a hereditary dystrophy, so consider documenting the family history and whether genetic counseling was provided, as this may support medical necessity for ophthalmology referrals or specialized treatments
Code Hierarchy
└H18Other disorders of cornea└H18.5Hereditary corneal dystrophies└H18.54Lattice corneal dystrophy└H18.543Lattice corneal dystrophy, bilateral
└H18.543Lattice corneal dystrophy, bilateral