Adverse effect of unsp antipsychotics and neuroleptics, init

This code signifies an undesirable or harmful reaction experienced by a patient due to the therapeutic use of an antipsychotic or neuroleptic medication, where the specific drug causing the reaction is not documented. This adverse effect occurred during the initial phase of treatment or during the first encounter for this specific complication.

Apply this code when a patient presents with symptoms clearly identified as an adverse effect from an antipsychotic or neuroleptic, but the precise medication is not specified in the medical record. This is appropriate for the initial visit where the adverse reaction is first evaluated or treated.

• Always attempt to identify the specific antipsychotic or neuroleptic drug to use a more specific code.
• Ensure documentation clearly states "adverse effect" rather than poisoning, overdose, or underdosing.
• Confirm this is the patient's first encounter for this particular adverse reaction. Subsequent encounters would use a different seventh character.