ICD-10 Code H40.62 – Glaucoma secondary to drugs, left eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H40.62 – Glaucoma secondary to drugs, left eye
What it is
This code identifies glaucoma in the left eye that is caused by medication or another drug exposure. Use it when documentation links the elevated eye pressure or glaucomatous damage to a drug effect.
Clinical signs
Findings may include increased intraocular pressure, optic nerve damage, or visual field loss. Clinical features vary; refer to documentation.
When to use this code
Use this code when the provider documents secondary glaucoma in the left eye due to a drug, such as steroid-related glaucoma. It is appropriate when the causal drug exposure is clearly stated in the record. If laterality is not documented, check documentation before coding.
Do not use for
Do not use it for primary glaucoma or for elevated eye pressure without a documented drug cause. Do not assume laterality or drug causation from medication history alone.
Coding tip
Verify both the drug cause and left-eye laterality in the provider note before assigning H40.62.