Poisoning by oth antipsychot/neurolept, undetermined, subs

This code signifies a patient presenting for follow-up care or treatment of adverse effects resulting from an overdose or toxic reaction to an antipsychotic or neuroleptic medication, where the intent (e.g., accidental, intentional self-harm) of the poisoning is not documented or cannot be determined. The patient is experiencing ongoing complications or receiving continued management related to the initial poisoning event.

Use this code for subsequent encounters when a patient is being treated for the lingering effects or complications of an antipsychotic or neuroleptic poisoning, and the medical record does not specify whether the poisoning was accidental, intentional, or assault. This applies to situations where the initial acute phase of treatment has passed, but ongoing care is required.

• Requires an additional code for the specific adverse effect or manifestation of the poisoning.
• Ensure documentation clearly indicates a "subsequent encounter" for the poisoning, not an initial acute treatment.
• Only use when the intent of the poisoning is explicitly documented as "undetermined" or cannot be ascertained from the medical record.