Residual stage of angle-closure glaucoma, left eye

This code signifies the permanent damage or sequelae resulting from a past episode of angle-closure glaucoma affecting the left eye. It indicates that the acute phase of the glaucoma has resolved, but residual effects, such as optic nerve damage or visual field loss, persist.

Apply this code when documentation explicitly states "residual stage," "sequelae of," or "history of" angle-closure glaucoma with ongoing effects in the left eye. This is appropriate when the patient is no longer in an acute or active phase of angle-closure glaucoma but still experiences related complications.

• Ensure documentation specifies "residual stage" and laterality (left eye) to differentiate from active or unspecified angle-closure glaucoma.
• Do not use this code for acute or active angle-closure glaucoma; refer to codes within H40.20-H40.23.
• Consider co-reporting with codes for specific residual conditions, such as visual field defects (H53.4x) or optic atrophy (H47.2x), if documented.