Toxic effect of thallium, assault, sequela

This code signifies a long-term or residual health problem resulting from a past poisoning by thallium, where the poisoning was intentionally inflicted by another person. It indicates that the patient is experiencing ongoing effects from a previous thallium assault.

Apply this code when documenting chronic conditions, disabilities, or persistent symptoms directly attributable to a past thallium poisoning that occurred as an assault. This would be used for follow-up care long after the acute toxic event has resolved.

• Always use this code as a secondary diagnosis, following the code for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past thallium assault.
• Do not use for acute thallium poisoning; this code is exclusively for sequelae.