Poisoning by thyroid hormones and sub, self-harm, sequela

This code signifies a long-term consequence or complication arising from a deliberate overdose of thyroid hormones or their synthetic substitutes. It indicates that the patient intentionally inflicted harm upon themselves, and the current medical issue is a direct result of that past poisoning event. This could include persistent organ damage, metabolic disturbances, or other chronic conditions.

Apply this code when documenting a patient presenting with a current health problem that is a sequela of a previous intentional self-poisoning by thyroid hormones. This would be used after the acute phase of the poisoning has passed and the patient is being treated for the lasting effects. Examples include chronic cardiac arrhythmias or persistent thyroid dysfunction secondary to the overdose.

• Always sequence this code after the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to the past intentional self-harm poisoning.
• Do not use this code for the acute poisoning event; use the appropriate acute poisoning code with the 7th character 'A' or 'D'.