Poisoning by antithyroid drugs, assault, sequela

This code signifies a long-term health problem or complication arising from an intentional act of poisoning with antithyroid medications. The original poisoning event was an assault, meaning it was inflicted by another person with malicious intent. The patient is now experiencing residual effects or conditions directly attributable to that past poisoning.

Use this code when documenting a patient presenting with a chronic condition, organ damage, or other persistent sequelae that are a direct result of a previous antithyroid drug poisoning that occurred as an assault. This code is appropriate for follow-up encounters long after the acute poisoning has been treated, focusing on the lasting impact.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., specific organ damage).
• Ensure documentation clearly links the current condition to a past antithyroid drug poisoning and specifies the assault intent.
• Do not use for acute poisoning events; this code is exclusively for sequelae.