Poisn by pertuss vaccine, inc combin w pertuss, asslt, init

This code signifies an adverse reaction or toxicity resulting from the administration of a pertussis-containing vaccine, where the poisoning was intentionally inflicted by another person. The patient is in the acute phase of treatment for these effects. This diagnosis indicates a harmful response to the vaccine itself, rather than an allergic reaction or an infection from the disease it prevents.

Apply this code when a patient presents with symptoms of poisoning directly attributable to a pertussis vaccine, and medical documentation clearly states the poisoning was due to an assault. This would include situations where the vaccine was administered maliciously or with intent to harm. It is used for the initial encounter for treatment of this specific poisoning event.

• Ensure documentation explicitly states "assault" as the intent for the poisoning.
• Confirm the substance involved is a pertussis vaccine or a combination vaccine containing pertussis.
• This code is for the initial treatment encounter; subsequent encounters would require different seventh characters.