Poisoning by opth drugs and preparations, accidental, subs

This code signifies an adverse health effect resulting from the unintentional ingestion, administration, or exposure to an ophthalmic medication, occurring during a follow-up visit for the initial poisoning event. The patient is experiencing ongoing complications or receiving continued treatment related to the accidental drug exposure.

Apply this code when a patient presents for subsequent care following an accidental poisoning by eye drops, ointments, or other ophthalmic preparations. This includes scenarios such as monitoring for lingering side effects, managing ongoing symptoms, or follow-up appointments after initial emergency treatment. It is used after the acute phase of the poisoning has passed.

• Always pair this code with an external cause code (V00-Y99) to specify the circumstances of the poisoning.
• Ensure the encounter documented is not the initial treatment for the poisoning; for initial encounters, use the "A" seventh character.
• Verify that the drug involved was specifically an ophthalmological preparation, as other drug classes have different codes.