Glaucoma secondary to drugs, bilateral, mild stage

This code signifies elevated intraocular pressure and optic nerve damage in both eyes, resulting from the use of certain medications. The condition is in its early stages, with minimal visual field loss and optic nerve changes. It represents a drug-induced form of glaucoma affecting both eyes.

Apply this code when documentation clearly indicates bilateral glaucoma caused by systemic or topical drug therapy, such as corticosteroids. The medical record must specify "mild stage" or equivalent findings like early visual field defects and optic nerve cupping. Use this code when the drug is identified as the causative agent.

• Always identify the specific drug causing the glaucoma using an additional code from Chapter 20 (External Causes of Morbidity).
• Ensure documentation specifies "bilateral" and "mild stage" to support this exact code. If only one eye is affected or the stage is moderate/severe, a different code is required.
• Distinguish from primary open-angle glaucoma or other secondary glaucomas not drug-induced.