Glaucoma secondary to drugs, bilateral, moderate stage

This code signifies elevated intraocular pressure and optic nerve damage in both eyes, resulting from the use of certain medications. The condition has progressed to a moderate stage, indicating a measurable degree of visual field loss or optic nerve damage.

Apply this code when documentation clearly links the development of glaucoma in both eyes to systemic or topical drug therapy. This typically includes cases where steroid use, certain antidepressants, or other medications are identified as the causative agent. Documentation should specify the bilateral involvement and the moderate severity of the glaucoma.

• Always identify the specific drug causing the glaucoma using an additional code from T36-T50, with an appropriate fifth or sixth character.
• Ensure documentation explicitly states "bilateral" involvement and "moderate stage" to support this specific code.
• Distinguish from primary open-angle glaucoma (H40.1x) or other secondary glaucomas (H40.4x, H40.5x) where drug causation is not established.