Chronic angle-closure glaucoma, l eye, indeterminate stage

This code signifies a chronic form of angle-closure glaucoma affecting the left eye, where the specific stage of the disease progression cannot be definitively determined. This condition involves elevated intraocular pressure due to the physical obstruction of the eye's drainage angle, leading to optic nerve damage and potential vision loss.

Apply this code when documentation clearly indicates chronic angle-closure glaucoma in the left eye, but the physician is unable to assign a specific stage (e.g., mild, moderate, severe) due to insufficient information or ongoing evaluation. Supporting documentation should include ophthalmological exam findings, tonometry readings, and a physician's statement confirming the chronic nature and indeterminate staging.

• Ensure documentation explicitly states "chronic" and "indeterminate stage" for the left eye.
• Do not use this code if a specific stage (e.g., mild, moderate, severe) is documented; instead, choose the appropriate staged code.
• Verify laterality carefully; this code is specific to the left eye.