Poisoning by antiviral drugs, assault, subsequent encounter

This code signifies a patient presenting for follow-up care or sequelae related to an intentional overdose or harmful exposure to antiviral medications, inflicted by another person. The patient is no longer in the acute phase of the poisoning but is receiving ongoing treatment or monitoring for its effects.

Apply this code when documenting subsequent visits for a patient who was intentionally poisoned by antiviral drugs by another individual. This includes appointments for managing lingering symptoms, monitoring organ function, or addressing psychological impacts resulting from the assault. It is appropriate for any encounter after the initial acute treatment.

• Ensure documentation clearly indicates the poisoning was an assault and not accidental or self-harm.
• Confirm this is a subsequent encounter; use the appropriate initial encounter code for the acute phase.
• Always code the specific antiviral drug if known, using additional codes from categories T36-T50.