ICD-10 Code H40.32 – Glaucoma secondary to eye trauma, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.32 – Glaucoma secondary to eye trauma, left eye
What it is
This code identifies glaucoma that develops after an injury to the left eye. Use it when documentation clearly links elevated intraocular pressure or glaucomatous damage to prior trauma.
Clinical signs
Clinical features may include increased eye pressure, optic nerve damage, or visual field loss after trauma. Clinical features vary; refer to documentation.
When to use this code
Use H40.32 when the provider documents traumatic glaucoma in the left eye, including delayed onset after blunt or penetrating injury. Code it when the record specifies the left eye and the glaucoma is secondary to trauma, not primary glaucoma.
Do not use for
Do not use this code for primary open-angle, angle-closure, or other nontraumatic glaucoma. Check documentation if the injury is unspecified, the eye is not identified, or the diagnosis is only suspected.
Coding tip
Always confirm both the traumatic cause and the left-eye laterality in the provider note before assigning H40.32.