Contact with and (suspected) exposure to other potentially hazardous chemicals

This code signifies a patient's documented contact with or suspected exposure to a hazardous chemical substance, excluding medications, pesticides, or other specified agents. It indicates that the patient may have been in proximity to or touched a harmful chemical, but does not necessarily imply poisoning or adverse effects.

Use this code when a patient presents for evaluation following an incident involving exposure to an unspecified or "other" hazardous chemical, such as industrial solvents, cleaning agents, or laboratory reagents. This applies even if the patient is asymptomatic, as the exposure itself warrants documentation.

• Always code the specific chemical if known and a more precise code exists (e.g., specific poisoning codes).
• This code is for exposure, not poisoning; if symptoms of poisoning are present, code the poisoning first.
• Consider an external cause code (E-code) in conjunction with this diagnosis to describe the circumstances of the exposure.