Poisoning by histamine H2-receptor blockers, assault, subs

This code signifies a patient presenting for follow-up care or complications arising from an intentional overdose of histamine H2-receptor blockers, such as cimetidine or ranitidine, administered by another person with intent to harm. The patient has already received initial treatment for the acute poisoning event.

Apply this code when documenting subsequent encounters for patients who were victims of an assault involving H2-receptor blockers. This includes visits for ongoing monitoring, management of lingering side effects, or treatment of complications that developed after the initial acute poisoning. It is crucial that the poisoning was intentionally inflicted by another party.

• Ensure documentation clearly states the poisoning was an assault and not accidental or self-inflicted.
• Confirm this is a subsequent encounter, meaning the patient has already received initial care for the acute poisoning.
• Always code with any associated signs, symptoms, or complications resulting from the poisoning.