Pigmentary glaucoma, left eye, mild stage

This code signifies a diagnosis of pigmentary glaucoma affecting the left eye, where the condition is in its mildest stage. Pigmentary glaucoma is a secondary open-angle glaucoma characterized by the dispersion of pigment from the iris, which then clogs the trabecular meshwork, leading to increased intraocular pressure and optic nerve damage.

This code is appropriate when documentation clearly indicates pigmentary glaucoma in the left eye, and the ophthalmologist has assessed and documented the severity as "mild." Supporting documentation should include findings such as mild optic nerve changes, minimal visual field defects, and controlled intraocular pressure, consistent with a mild stage.

• Ensure the documentation explicitly states "left eye" and "mild stage" for accurate code assignment.
• Do not confuse this with other types of glaucoma (e.g., primary open-angle glaucoma) or different stages of pigmentary glaucoma.
• Always review the ophthalmologist's complete assessment, including visual field tests and optic nerve head evaluation, to confirm the stage of glaucoma.