Posterior corneal pigmentations, right eye

This code describes the presence of pigment deposits on the posterior surface of the cornea in the right eye. These pigmentations, often referred to as Krukenberg's spindle, are typically a sign of pigment dispersion syndrome or glaucoma. They result from the release of pigment from the iris, which then adheres to the corneal endothelium.

Use this code when documentation clearly indicates posterior corneal pigmentation affecting the right eye. This is frequently observed during a slit-lamp examination by an ophthalmologist or optometrist. Supporting documentation should specify the location (posterior cornea) and laterality (right eye) of the pigmentation.

• Ensure the documentation specifies "posterior" corneal pigmentation, as other corneal pigmentations exist.
• Always verify laterality; separate codes exist for the left eye and bilateral involvement.
• Consider co-occurring conditions like pigment dispersion syndrome (H21.26-) or glaucoma (H40.-) if documented, as these are often the underlying cause.