2025 ICD-10-CM code T50.A12A

Poisoning by pertussis vaccine (including combinations with a pertussis component), intentional self-harm, initial encounter.

Appropriate codes from Chapter 20 (External causes of morbidity) should be used to identify the intent (self-harm).If there are any residual effects, those should be coded as well, with appropriate sequencing following established guidelines.

Medical necessity is established by documenting the intentional self-harm, the type and amount of vaccine involved, the presence of symptoms and the interventions and treatment needed to manage the adverse effects.

The clinical responsibility involves assessing the patient for signs and symptoms of pertussis vaccine poisoning, providing appropriate treatment (e.g., supportive care, antidotes if available), monitoring vital signs, and managing any complications.Documentation of the intent of self-harm is crucial.

IMPORTANT May require additional codes from Chapter 20 (External causes of morbidity) to specify the cause of the self-harm.Consider also codes for any resulting complications or manifestations of the poisoning.

In simple words: This code is used when someone intentionally harms themselves by taking a pertussis vaccine (or a vaccine that includes pertussis). It's for the first time this happens.

This code classifies poisoning due to a pertussis vaccine (or a vaccine containing a pertussis component) resulting from intentional self-harm.It specifically applies to the initial encounter with this poisoning event.The code should be used when the poisoning is a direct result of deliberate self-administration of the vaccine.

Example 1: A 25-year-old female intentionally injects herself with a pertussis vaccine obtained illegally, resulting in an allergic reaction requiring hospitalization. T50.A12A is used to code the poisoning due to intentional self-harm.Additional codes would be used to describe the allergic reaction., A 40-year-old male with a history of depression and suicidal ideation ingests multiple doses of a pertussis-containing vaccine in a suicide attempt. T50.A12A is used to code the poisoning from the intentional self-harm, and additional codes to capture the complications., A teenager intentionally administers a pertussis vaccine to himself in an attempt to avoid getting the disease, experiencing mild symptoms like fever and swelling. This would be coded with T50.A12A, and further codes may be added depending on symptoms.

Detailed documentation is required including patient history, circumstances surrounding the event, type of vaccine administered, quantity ingested or injected, the patient’s symptoms, treatment provided, and the provider’s assessment.

** This code should only be used for the initial encounter with the poisoning. Subsequent encounters for the same poisoning should use appropriate subsequent encounter codes.Always cross-reference with relevant external cause codes from Chapter 20.

  • Payment Status: Active
  • Specialties:Emergency Medicine, Toxicology, Psychiatry
  • Place of Service:Emergency Room - Hospital, Inpatient Hospital, Office
** Only Enterprise users with EHR integration can access case-specific answers. Click here to request access.