Chronic angle-closure glaucoma, left eye, stage unspecified

This code signifies a chronic form of glaucoma affecting the left eye, characterized by a permanently or intermittently closed anterior chamber angle, leading to elevated intraocular pressure and optic nerve damage. The specific stage of the disease progression is not documented or determined.

Apply this code when documentation confirms a diagnosis of chronic angle-closure glaucoma specifically in the left eye, and the ophthalmologist has not specified a stage (e.g., mild, moderate, severe). This typically occurs when initial diagnosis is made, or when staging information is unavailable or not yet determined.

• Ensure documentation explicitly states "chronic" and "angle-closure" glaucoma for the left eye.
• Do not use this code if a specific stage (e.g., mild, moderate, severe) is documented; instead, select the appropriate staged code.
• Verify laterality (left eye) is clearly documented to avoid miscoding.