Residual stage of open-angle glaucoma, left eye

This code signifies the permanent, irreversible damage to the optic nerve and visual field loss in the left eye resulting from previously active open-angle glaucoma. It indicates that the active disease process has stabilized, but the structural and functional consequences persist. The patient is no longer experiencing progressive damage but is living with the sequelae of the condition.

Use this code when documentation clearly states "residual stage," "end-stage," or "inactive" open-angle glaucoma affecting the left eye, with evidence of prior damage. This applies to patients whose intraocular pressure is controlled, but who have sustained optic nerve atrophy and corresponding visual field defects from the disease. Supporting documentation includes ophthalmology notes detailing stable optic nerve head appearance, visual field test results, and a history of open-angle glaucoma.

• Do not use this code for active or uncontrolled open-angle glaucoma; instead, select a code indicating the specific stage (e.g., mild, moderate, severe).
• Always specify laterality (left, right, or bilateral) as indicated in the documentation.
• Consider co-reporting with codes for associated visual impairment or blindness if present and documented.