Poisoning by penicillins, accidental (unintentional), subs

This code signifies an adverse reaction or overdose to penicillin, occurring unintentionally, during a follow-up visit or ongoing treatment phase. It indicates that the initial poisoning event has already been addressed, and the patient is now receiving care for its lingering effects or complications.

Apply this code when a patient presents for continued management of symptoms or complications stemming from an accidental penicillin poisoning. This includes situations like monitoring for organ damage, managing persistent allergic reactions, or addressing secondary infections that arose due to the initial poisoning.

• Ensure documentation clearly states the poisoning was accidental and this is not the initial encounter for the event.
• Always sequence this code after any codes for the specific manifestations or complications of the poisoning.
• Verify the substance involved was indeed a penicillin to differentiate from other antibiotic poisonings.