Poisoning by antiviral drugs, accidental, subs

This code signifies an accidental overdose or adverse reaction to antiviral medications during a follow-up visit. It indicates that the patient is receiving ongoing care for the effects of an unintentional poisoning by drugs designed to treat viral infections.

Apply this code for subsequent encounters where a patient is being managed for complications or ongoing symptoms resulting from an accidental antiviral drug poisoning. This includes follow-up appointments for monitoring organ function, managing side effects, or adjusting treatment plans after the initial acute event.

• Ensure the poisoning was explicitly documented as accidental or unintentional.
• Verify that the encounter is for follow-up care, not the initial treatment of the acute poisoning.
• Always code the specific antiviral drug involved if known, using an additional code from T36-T50.