Hypersecretion glaucoma, left eye

This code indicates a specific type of secondary glaucoma affecting the left eye, characterized by an overproduction of aqueous humor. This excess fluid leads to increased intraocular pressure, which can damage the optic nerve and result in vision loss if untreated. It is distinct from glaucoma caused by impaired aqueous outflow.

Assign this code when documentation explicitly states "hypersecretion glaucoma" or "glaucoma due to increased aqueous production" affecting the left eye. Supporting documentation should include ophthalmological examination findings confirming elevated intraocular pressure and optic nerve changes, along with a clear etiology of aqueous humor overproduction.

• Ensure the documentation specifies "hypersecretion" as the cause of glaucoma, not merely elevated intraocular pressure.
• Verify the laterality is explicitly stated as the left eye; do not assume.
• Distinguish from other secondary glaucomas (e.g., pigmentary, pseudoexfoliative) which have different underlying mechanisms and codes.