ICD-10 Code H26.31 – Drug-induced cataract, right eye (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code H26.31 – Drug-induced cataract, right eye
What it is
This code identifies a cataract in the right eye that is attributed to medication or another drug exposure. Use it when the documentation clearly links the lens opacity to a drug cause.
Clinical signs
Typical findings include clouding of the lens with reduced visual clarity, glare, or blurred vision. Clinical features vary; refer to documentation.
When to use this code
Use H26.31 when the provider documents a drug-induced cataract specifically in the right eye. It fits cases where the causal drug is named or the chart states the cataract is medication related. If laterality is not documented, check documentation.
Do not use for
Do not use this code for cataracts not linked to drugs, or when the affected eye is not the right eye. If the record only says cataract without cause, choose the unspecified or other appropriate cataract code.
Coding tip
Verify both the drug causation and right-eye laterality before assigning H26.31.