Anterior corneal pigmentations, bilateral

This code describes the presence of abnormal pigment deposits on the anterior surface of both corneas. These pigmentations can be a benign finding or indicate an underlying ocular condition such as pigment dispersion syndrome or pseudoexfoliation syndrome.

Assign this code when documentation specifies bilateral anterior corneal pigmentations. This typically occurs during a slit lamp examination where the ophthalmologist notes pigment on the corneal endothelium or Bowman's layer in both eyes. Supporting documentation should clearly indicate the location and bilaterality of the pigment.

• Ensure the documentation explicitly states "bilateral" to support the laterality.
• Do not confuse with corneal pigmentation due to foreign bodies or trauma, which would be coded differently.
• Consider coding any underlying conditions causing the pigmentation (e.g., H21.51 for pigmentary glaucoma) as a primary diagnosis if applicable.