Pigmentary glaucoma, left eye, indeterminate stage

This code signifies a diagnosis of pigmentary glaucoma affecting the left eye, where the specific stage of the disease progression has not yet been determined or documented. Pigmentary glaucoma is a secondary open-angle glaucoma characterized by the dispersion of pigment granules from the iris, which then obstruct the trabecular meshwork, leading to increased intraocular pressure and optic nerve damage.

Use this code when documentation clearly indicates pigmentary glaucoma in the left eye, but the ophthalmologist has not specified the stage (e.g., mild, moderate, severe). This is appropriate for initial diagnoses or when further evaluation is needed to determine disease severity. Supporting documentation should include findings of pigment dispersion syndrome, elevated intraocular pressure, and optic nerve changes consistent with glaucoma in the left eye.

• Ensure laterality (left eye) is explicitly documented.
• Avoid using this code if the stage of glaucoma is known; instead, select the appropriate stage-specific code.
• Do not confuse with primary open-angle glaucoma or other secondary glaucomas; confirm the "pigmentary" etiology.