Drug-induced cataract, left eye

This code identifies a cataract that has developed in the left eye as a direct consequence of medication use. This condition involves the clouding of the eye's natural lens, impairing vision, and is specifically attributed to an adverse drug effect.

Use this code when documentation clearly links the development of a cataract in the left eye to a prescribed or illicit drug. This typically requires a physician's assessment confirming the drug as the causative agent, often after ruling out other etiologies.

• Always sequence the drug-induced cataract code first, followed by the external cause code (T36-T50 with 5th or 6th character indicating adverse effect) to identify the specific drug.
• Ensure documentation specifies "left eye" to support the laterality. If laterality is not documented, query the provider.
• Differentiate from age-related or other types of cataracts; the causal link to a drug must be explicit.