Poisoning by oth antipsychot/neurolept, accidental, sequela

This code signifies the long-term effects or complications arising from an accidental overdose or unintended exposure to antipsychotic or neuroleptic medications, excluding phenothiazine-based drugs. These sequelae can manifest as persistent neurological, psychiatric, or systemic issues that develop after the acute poisoning event has resolved.

Apply this code when documenting conditions directly attributable to a past, unintentional poisoning by non-phenothiazine antipsychotics or neuroleptics. This includes chronic movement disorders, cognitive impairments, or other lasting organ damage that are a direct consequence of the prior toxic exposure. It is used after the acute phase of the poisoning has passed.

• Always assign this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past accidental poisoning by an "other" antipsychotic/neuroleptic.
• Do not use this code for acute poisoning events; instead, use the appropriate acute poisoning code with the 7th character "A" (initial encounter) or "D" (subsequent encounter).