Poisoning by typhus vaccine

This code signifies an adverse reaction or toxic effect resulting from the administration of a typhus vaccine. It indicates that the patient has experienced symptoms of poisoning directly attributable to the vaccine, rather than an allergic reaction or typical side effect. This condition involves systemic effects beyond localized injection site reactions.

Use this code when documentation clearly states a patient has suffered poisoning due to a typhus vaccine. This typically involves symptoms such as severe systemic toxicity, organ dysfunction, or other adverse effects that go beyond expected vaccine reactions. The medical record should explicitly link the patient's condition to the typhus vaccine as the causative agent of poisoning.

• Distinguish from allergic reactions (e.g., anaphylaxis) to the vaccine, which would be coded differently.
• Always sequence this code as a primary diagnosis when it is the reason for the encounter.
• Ensure documentation specifies "poisoning" or "toxic effect" rather than just an "adverse effect" or "complication" to support this specific code.