Glaucoma secondary to drugs, left eye, mild stage

This code signifies elevated intraocular pressure and optic nerve damage in the left eye, resulting from the use of certain medications. The condition is in its early stages, indicating minimal visual field loss or optic nerve damage. This form of glaucoma is directly attributable to drug exposure rather than primary causes.

Apply this code when documentation clearly states drug-induced glaucoma affecting the left eye, with a confirmed mild stage. This typically occurs following systemic or topical corticosteroid use, or other medications known to elevate intraocular pressure. Supporting documentation should include a history of medication use, ophthalmic exam findings, and an assessment of glaucoma severity.

• Ensure the documentation explicitly links the glaucoma to drug use and specifies the left eye.
• Verify the stage of glaucoma (mild, moderate, severe, indeterminate) is clearly documented.
• Always sequence the drug causing the adverse effect (T36-T50 with 5th or 6th character 5) as an additional diagnosis.