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

This code signifies a long-term or residual effect resulting from a poisoning event involving immune checkpoint inhibitors or other immunostimulant drugs, where the intent of the poisoning is unknown. These sequelae can manifest as persistent organ damage, chronic autoimmune conditions, or other lasting health issues.

Apply this code when a patient presents with a current condition or symptom that is a direct consequence of a past, undetermined poisoning by immune checkpoint inhibitors or immunostimulant drugs. This is appropriate for chronic or permanent effects that remain after the acute phase of the poisoning has resolved.

• Always sequence this sequela code after the code for the specific residual condition being treated.
• Ensure documentation clearly links the current condition to a past poisoning by an immune checkpoint inhibitor or immunostimulant, with an undetermined intent.
• Do not use this code for acute poisoning events; instead, use the appropriate acute poisoning code with the 7th character for initial or subsequent encounter.