Adverse effect of butyrophen/thiothixen neuroleptc, sequela

This code signifies a long-term or residual condition resulting from a past adverse reaction to butyrophenone or thiothixene neuroleptics. These adverse effects are no longer acute but have left a lasting impact on the patient's health. Examples include persistent tardive dyskinesia or chronic parkinsonism induced by these medications.

Apply this code when documenting a chronic or permanent sequela directly attributable to an adverse effect of butyrophenone or thiothixene neuroleptics. This is appropriate when the acute adverse event has resolved, but the patient continues to experience a related, ongoing medical problem. It should be used in conjunction with a code for the specific sequela.

• Always code the specific sequela first, followed by this code to indicate its etiology.
• Ensure documentation clearly links the current chronic condition to a past adverse effect of the specified neuroleptics.
• Do not use this code for acute adverse effects; instead, use the appropriate acute adverse effect code.