Toxic effect of unsp inorganic substance, assault, sequela

This code signifies a long-term or residual health problem resulting from exposure to an unknown inorganic substance due to an intentional act of harm by another person. The initial toxic event has resolved, but the patient continues to experience lasting effects.

Apply this code when documenting a sequela (late effect) of poisoning by an inorganic substance where the specific substance is not identified, and the poisoning was definitively determined to be an assault. This is used after the acute phase of the poisoning has passed and the patient presents for treatment of chronic or persistent complications.

• Always sequence this code after the code for the specific sequela being treated.
• Ensure documentation clearly states the poisoning was an assault and the substance was inorganic but unspecified.
• The "S" in the seventh character indicates a sequela, meaning the initial injury or poisoning has healed, but its effects remain.