ICD-10 Code H40.249 – Residual stage of angle-closure glaucoma, unspecified eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.249 – Residual stage of angle-closure glaucoma, unspecified eye
What it is
This code identifies the residual stage of angle-closure glaucoma when the affected eye is not specified. It indicates ongoing or permanent optic nerve damage after an angle-closure event.
Clinical signs
Findings may include glaucomatous optic nerve changes, visual field loss, and a history of angle closure. Clinical features vary; refer to documentation.
When to use this code
Use H40.249 when the record states residual stage of angle-closure glaucoma and does not name the right or left eye. It fits follow-up documentation showing chronic damage after an acute or prior angle-closure episode. If the note identifies the eye, code the laterality instead.
Do not use for
Do not use this code for acute angle-closure glaucoma, suspect glaucoma, or open-angle glaucoma. If the provider documents a specific eye or different stage, choose the more precise code.
Coding tip
Check the ophthalmology note for laterality and stage before assigning H40.249.