Poisn by phenothiaz antipsychot/neurolept, assault, sequela

This code signifies a long-term health problem or complication resulting from a poisoning event involving phenothiazine antipsychotics or neuroleptics, where the poisoning was intentionally inflicted by another person. The patient is no longer in the acute phase of the poisoning but is experiencing residual effects.

This code is appropriate for documenting chronic neurological deficits, persistent extrapyramidal symptoms, or other lasting organ damage directly attributable to a past assault involving phenothiazine overdose. It should be used when the patient is seen for follow-up care related to these sequelae, long after the initial acute poisoning episode has resolved.

• Always assign an additional code to specify the exact nature of the sequela (e.g., specific neurological disorder, organ damage).
• Ensure documentation clearly links the current condition to the past assaultive poisoning event.
• This "S" seventh character indicates sequela and should only be used for complications or conditions arising as a direct result of the initial poisoning.