Chronic angle-closure glaucoma, unsp eye, moderate stage

This code signifies a chronic form of glaucoma where the iris blocks the drainage angle of the eye, leading to increased intraocular pressure and optic nerve damage. The "moderate stage" indicates a specific level of functional impairment, typically characterized by visual field defects in one hemifield not extending to within 5 degrees of fixation, or visual field defects in both hemifields. The "unspecified eye" denotes that the laterality of the condition is not documented.

Apply this code when documentation confirms chronic angle-closure glaucoma with a specified moderate stage of severity, but the affected eye (right or left) is not explicitly stated. This is appropriate for patients presenting with characteristic visual field loss and optic nerve changes consistent with moderate glaucoma. Ensure the physician's notes clearly indicate "moderate stage" and do not specify laterality.

• Do not use this code if the laterality (right or left eye) is documented; instead, select the appropriate H40.2212 or H40.2222.
• Distinguish carefully between acute, chronic, and intermittent angle-closure glaucoma based on physician documentation.
• Always look for documentation of the glaucoma stage (mild, moderate, severe, indeterminate) as this significantly impacts code selection.