Toxic effect of oth inorganic substances, assault, sequela

This code indicates a long-term or residual health problem resulting from a past poisoning by an inorganic substance, excluding metals, gases, and carbon monoxide, where the poisoning was intentionally inflicted by another person. The patient is no longer in the acute phase of the toxic effect, but is experiencing lasting consequences.

Apply this code when documenting a chronic condition or permanent injury directly attributable to a previous assault involving an inorganic substance like phosphorus, sulfur, or certain acids/alkalis. This would be used for follow-up care after the initial acute toxic event has resolved, and the patient is being treated for the sequelae.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation clearly links the current condition to a past assault by an inorganic substance.
• Do not use this code for acute toxic effects; use the appropriate acute poisoning code with the "A" or "D" seventh character.