Adverse effect of antipsychotics and neuroleptics, sequela

This code signifies a long-term or residual condition resulting from an adverse reaction to antipsychotic or neuroleptic medications, excluding phenothiazine-based drugs. It indicates that the initial acute adverse effect has resolved, but a lasting health problem or complication persists. This could include conditions like tardive dyskinesia or persistent extrapyramidal symptoms.

Use this code when documenting a patient presenting with a chronic or permanent sequela directly attributable to a past adverse effect from an "other" antipsychotic or neuroleptic medication. This applies when the original adverse event is no longer active, but its lasting impact on the patient's health is being treated or monitored. An example would be a patient with established tardive dyskinesia following discontinuation of an atypical antipsychotic.

• Always sequence this code after the code for the specific sequela (e.g., G24.01 for tardive dyskinesia).
• Ensure documentation clearly links the current sequela to a past adverse effect of an antipsychotic/neuroleptic.
• Confirm the medication involved is not a phenothiazine, as those have a separate code series.