Low-tension glaucoma, left eye, moderate stage

This code signifies a form of glaucoma where optic nerve damage and visual field loss occur despite intraocular pressure (IOP) being within the statistically normal range. It specifically identifies the condition affecting the left eye, having progressed to a moderate stage of severity.

Use this code when documentation confirms a diagnosis of low-tension glaucoma in the left eye, with visual field defects and optic nerve damage consistent with a moderate stage. Supporting documentation should include visual field test results, optic nerve head evaluation, and IOP readings that are consistently within normal limits.

• Ensure laterality (left eye) and stage (moderate) are clearly documented by the ophthalmologist.
• Distinguish from primary open-angle glaucoma (H40.11-) where IOP is elevated.
• Code also any associated visual field defects (H53.4-) if documented.