2025 ICD-10-CM code T46.2X4

Poisoning by other antidysrhythmic drugs, undetermined intent.

Use a secondary code from Chapter 20 (External causes of morbidity) to indicate the cause of the injury/poisoning, if known. If a foreign body is retained, use code Z18.-.

The 7th character is required and specifies the intent (accidental, intentional self-harm, assault, undetermined).

Medical necessity is established by the clinical presentation and the need for treatment of the poisoning.

The clinician is responsible for determining the cause of the poisoning, documenting the specific antidysrhythmic drug involved (if known), and providing appropriate treatment.If the intent can be determined, the appropriate 7th character should be used instead of 'X'.

IMPORTANT Excludes1: poisoning by, adverse effect of and underdosing of beta-adrenoreceptor antagonists (T44.7-) and metaraminol (T44.4)

In simple words: This code represents poisoning due to other antidysrhythmic drugs, and the intent behind it is unclear.

Poisoning by other antidysrhythmic drugs, undetermined intent. This code is used to document poisoning by antidysrhythmic drugs, excluding beta-blockers and metaraminol, where the intent (accidental, intentional self-harm, assault, undetermined) is unknown.

Example 1: A patient is found unconscious with an empty bottle of an antidysrhythmic medication (other than a beta-blocker or metaraminol) nearby. The intent of the ingestion is unknown., A patient presents to the emergency department with symptoms suggestive of antidysrhythmic drug poisoning.The patient is unable to provide a history due to altered mental status, and the specific drug and intent are unknown., A child is brought to the hospital after ingesting an unknown number of pills found in their grandparent's medicine cabinet. One of the medications in the cabinet is an antidysrhythmic drug. The child's symptoms are consistent with antidysrhythmic drug poisoning.

Documentation should include the clinical findings supporting the diagnosis of poisoning, any available information about the ingested substance, and details regarding the circumstances surrounding the event.If the intent is subsequently determined, the record should be updated accordingly.

** It's crucial to distinguish this code from T46.2X5A, which is specifically used for adverse effects, poisoning by overdose, or wrong substance administration. T46.2X4 is only for cases where intent is unknown.

  • Specialties:Emergency Medicine, Medical Toxicology, Internal Medicine, Pediatrics
  • Place of Service:Inpatient Hospital, Emergency Room - Hospital, Office
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