Poisoning by amphetamines, undetermined, subs encntr

This code indicates a patient presenting for follow-up care or treatment of adverse effects resulting from amphetamine poisoning, where the intent (accidental, intentional self-harm, assault) of the poisoning could not be determined. The patient is no longer in the acute phase of the poisoning but is still experiencing or being treated for its sequelae.

Use this code for subsequent encounters when a patient is receiving ongoing management for complications or lingering effects of amphetamine poisoning. This includes situations like follow-up appointments for organ damage, psychiatric sequelae, or withdrawal symptoms, after the initial acute poisoning event has been addressed.

• Always assign an additional code for any specific manifestations or complications of the amphetamine poisoning.
• Ensure the "D" seventh character is appropriate for subsequent care, not initial or sequela.
• If the intent of the poisoning is later determined, a more specific code (e.g., T43.621D, T43.622D, T43.623D) should be used.