ICD-10 Code H40.31 – Glaucoma secondary to eye trauma, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.31 – Glaucoma secondary to eye trauma, right eye
What it is
H40.31 identifies glaucoma that develops after trauma to the right eye. Use it when the record shows elevated intraocular pressure or glaucomatous damage linked to prior eye injury.
Clinical signs
Findings may include increased intraocular pressure, optic nerve damage, or visual field loss after trauma. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents glaucoma as secondary to an injury affecting the right eye. It applies when the traumatic cause is part of the clinical picture and the glaucoma is not described as primary or unrelated.
If the note specifies laterality and links the condition to prior eye trauma, you should code the right-eye form. Check documentation when the cause, eye involved, or glaucoma type is unclear.
Do not use for
Do not use this code for primary glaucoma, glaucoma in the left eye, or bilateral disease. Do not assign it when trauma is not documented as the cause; check documentation.
Coding tip
Verify both laterality and the traumatic etiology in the provider note before assigning H40.31.