Poisoning by amphetamines, accidental (unintentional), subs

This code signifies an accidental overdose or adverse reaction to amphetamines during a patient's follow-up care for the initial poisoning event. It indicates that the patient is receiving ongoing treatment, monitoring, or evaluation for the effects of the unintentional amphetamine exposure.

Use this code for patients presenting for follow-up appointments, medication adjustments, or management of residual symptoms after an initial accidental amphetamine poisoning. This applies when the patient is no longer in the acute phase of treatment but is still under care related to the poisoning.

• Requires a seventh character "D" for subsequent encounter.
• Distinguish from initial encounter (A) or sequela (S) for the same poisoning.
• Always code the specific amphetamine if known, using a more specific code if available.