Glaucoma secondary to drugs, unsp eye, indeterminate stage

This code signifies elevated intraocular pressure and optic nerve damage resulting from medication use, affecting an unspecified eye. The specific stage of the glaucoma progression is not determined or documented.

Apply this code when a patient presents with glaucoma explicitly attributed to a drug, and the medical record does not specify which eye is affected or the stage of the disease. Documentation should clearly link the glaucoma to a systemic or topical medication.

• Ensure documentation specifies "unspecified eye" and "indeterminate stage" to support this code.
• Do not use if the affected eye (right, left, or bilateral) or the stage of glaucoma is known; more specific codes exist.
• Always code the drug causing the adverse effect (T36-T50 with 5th or 6th character 5) as a secondary diagnosis.