H40.1123: Primary open-angle glaucoma, left eye, severe stage
H40.1123 is the billable ICD-10-CM diagnosis code for Primary open-angle glaucoma, left eye, severe stage. It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code H40.1123?
H40.1123 is the ICD-10-CM diagnosis code for Primary open-angle glaucoma, left eye, severe stage. It belongs to category H40 (Glaucoma).
Is H40.1123 a billable code?
Yes. H40.1123 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does H40.1123 belong to?
H40.1123 is part of ICD-10-CM category H40 — Glaucoma, which has 504 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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