Glaucoma secondary to drugs, right eye, stage unspecified

This code signifies elevated intraocular pressure and optic nerve damage in the right eye, specifically caused by the use of certain medications. The stage of glaucoma progression is not documented or cannot be determined. This condition can lead to irreversible vision loss if not managed.

Apply this code when documentation clearly links drug therapy (e.g., corticosteroids) to the development of glaucoma in the patient's right eye. This is appropriate when the physician has not specified the stage of glaucoma (e.g., mild, moderate, severe, or end-stage). Ensure the medical record explicitly states "drug-induced" or "secondary to drugs" as the etiology.

• Always identify the specific drug causing the glaucoma and code it as an adverse effect (T36-T50 with 5th or 6th character 5).
• Do not use this code if the glaucoma is due to another underlying condition (e.g., trauma, inflammation); instead, use codes from H40.4 or H40.5.
• If the stage of glaucoma is documented, select a more specific code from the H40.61 category (e.g., H40.611 for mild stage).