Pigmentary glaucoma, right eye, mild stage

This code signifies a diagnosis of pigmentary glaucoma affecting the right eye, where the condition is in its mild 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.

Apply this code when documentation explicitly states pigmentary glaucoma in the right eye with a confirmed mild stage. This typically involves findings such as pigment deposition on the corneal endothelium (Krukenberg's spindle), iris transillumination defects, and early signs of optic nerve damage or visual field loss consistent with a mild stage.

• Ensure the documentation specifies "right eye" and "mild stage" for accurate code assignment.
• Distinguish from other types of open-angle glaucoma; the "pigmentary" etiology must be clearly documented.
• Always code the laterality and stage if specified in the clinical record.