ICD-10 Code H40.05 – Ocular hypertension (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.05 – Ocular hypertension
What it is
Ocular hypertension means elevated intraocular pressure without confirmed glaucomatous damage. Use this code when the record documents high eye pressure, but not open-angle glaucoma or another specific glaucoma type.
Clinical signs
Findings usually include increased intraocular pressure on examination and no documented optic nerve or visual field loss. Clinical features vary; refer to documentation.
When to use this code
Use H40.05 when the provider diagnoses ocular hypertension or notes elevated ocular pressure as the main finding. It also fits follow-up visits for monitoring pressure when glaucoma has not been established. Confirm laterality and any associated glaucoma diagnosis in the record.
Do not use for
Do not use this code if the patient has documented glaucoma, glaucoma suspect, or another secondary cause of elevated pressure. Check documentation when the record is unclear.
Coding tip
Code ocular hypertension only when the provider clearly distinguishes it from glaucoma.