Poisn by phenothiaz antipsychot/neurolept, slf-hrm, sequela

This code signifies a long-term consequence or complication arising from an intentional overdose or self-poisoning with phenothiazine antipsychotics or other neuroleptic medications. These sequelae are the residual effects that persist after the acute phase of the poisoning has resolved. Examples include chronic neurological deficits, organ damage, or persistent psychiatric symptoms directly attributable to the past self-harm event.

Apply this code when documenting conditions that are a direct result of a past intentional self-harm poisoning by phenothiazine antipsychotics or neuroleptics. This is used for follow-up encounters where the patient is being treated for the chronic effects, not the acute poisoning itself. It indicates that the original self-harm event is no longer active but has left lasting health problems.

• Always sequence this "S" code after the code(s) for the specific sequela being treated.
• Do not use this code for the initial acute poisoning event; use the appropriate acute poisoning code with the 7th character "A" or "D" instead.
• Ensure documentation clearly links the current condition to the past intentional phenothiazine/neuroleptic self-poisoning.