Lattice degeneration of retina, left eye

This code describes a specific retinal degeneration characterized by a thinning of the peripheral retina, often appearing as a lattice-like pattern, affecting the left eye. This condition predisposes the eye to retinal tears and detachments due to its inherent weakness.

Use this code when documentation clearly indicates the presence of lattice degeneration in the patient's left eye. This diagnosis is typically made during a dilated fundus examination by an ophthalmologist. Supporting documentation should include findings from ophthalmoscopy or retinal imaging.

• Ensure laterality is accurately documented and coded; this specific code is for the left eye only.
• Distinguish from other retinal degenerations like paving-stone degeneration or retinoschisis, which have different ICD-10-CM codes.
• If a retinal tear or detachment is also present, code the lattice degeneration as a secondary diagnosis, as the tear/detachment would be the primary reason for the encounter.