Poisoning by antiviral drugs, intentional self-harm, subs

This code signifies a patient presenting for follow-up care or management of complications arising from a deliberate overdose or self-poisoning with antiviral medications. The initial acute phase of the poisoning has passed, and the patient is now receiving ongoing treatment for the effects.

Apply this code when documenting subsequent visits for patients who intentionally ingested an excessive amount of antiviral drugs. This includes appointments for monitoring organ damage, managing persistent symptoms, or addressing psychological sequelae after the initial emergency treatment.

• Ensure documentation clearly states "intentional self-harm" and that the encounter is not for the initial acute poisoning.
• Always code the specific antiviral drug if known, using an additional code from T37.5X-.
• Consider additional codes for any resulting organ damage or psychiatric conditions.