Poisn by immune chkpt inhibtr/immunostim drugs, acc, sqla

This code signifies a long-term or residual effect resulting from an accidental overdose or adverse reaction to immune checkpoint inhibitors or other immunostimulant medications. It indicates that the initial poisoning event, which was unintentional, has led to persistent health issues or complications.

Apply this code when documenting a patient presenting with a chronic condition, organ damage, or other lasting sequelae directly attributable to a past accidental poisoning by immune checkpoint inhibitors or immunostimulant drugs. This is appropriate for follow-up encounters addressing these persistent effects, not the initial acute poisoning event.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, neuropathy).
• Ensure documentation clearly links the current condition to a past accidental poisoning by the specified drug classes.
• Do not use this code for acute poisoning events; instead, use the appropriate acute poisoning code with the initial encounter seventh character.