Poisn by phenothiaz antipsychot/neurolept, self-harm, subs

This code signifies a follow-up encounter for a patient who intentionally self-poisoned with phenothiazine antipsychotics or other neuroleptics. It indicates that the initial event of self-harm has already occurred, and the patient is now receiving ongoing care related to the sequelae or recovery from that poisoning.

Apply this code for subsequent visits where a patient is being monitored, treated for complications, or undergoing psychiatric evaluation following an intentional overdose of medications like chlorpromazine, fluphenazine, or thioridazine. This includes encounters for managing residual symptoms, organ damage, or mental health support after the acute phase of poisoning.

• Ensure documentation clearly states "intentional self-harm" and that it's a "subsequent encounter."
• Always code the specific phenothiazine or neuroleptic if known, using additional codes from T43.3X-.
• Pair with codes for any resulting medical conditions or psychiatric diagnoses related to the self-harm.