ICD-10 Code H40.061 – Primary angle closure without glaucoma damage, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.061 – Primary angle closure without glaucoma damage, right eye
What it is
This code identifies primary angle closure in the right eye when the drainage angle is narrowed or blocked, but there is no documented glaucomatous optic nerve damage. Use it when the condition is confined to that eye.
Clinical signs
Findings may include a shallow anterior chamber, elevated intraocular pressure, or a closed/narrow angle on exam. Clinical features vary; refer to documentation.
When to use this code
Use H40.061 when the record states primary angle closure in the right eye and specifically notes no glaucoma damage. It fits ophthalmology documentation describing angle closure before optic nerve injury is present. If laterality or glaucoma status is unclear, check documentation.
Do not use for
Do not use this code if glaucoma damage is documented, or if the left eye or both eyes are involved instead. Do not assign it for secondary angle closure or unspecified angle-closure glaucoma.
Coding tip
Verify laterality and the absence of glaucomatous damage before coding.