Poisoning by phenothiaz antipsychot/neurolept, acc, subs

This code signifies an accidental overdose or adverse reaction to phenothiazine antipsychotics or neuroleptics, occurring during a follow-up visit for the initial poisoning event. The patient is experiencing ongoing effects or complications from the unintentional ingestion or exposure to these medications.

Apply this code when a patient presents for continued management, monitoring, or treatment of symptoms stemming from an accidental poisoning by phenothiazine antipsychotics or neuroleptics. This includes follow-up appointments for persistent side effects, organ damage, or mental status changes directly attributable to the initial unintentional overdose.

• Always sequence this code after the primary diagnosis for the specific manifestation of the poisoning.
• Ensure documentation clearly indicates the accidental nature of the poisoning and that it's a subsequent encounter.
• Do not use for intentional self-harm or assault; those scenarios require different intent codes.