Toxic effect of lacrimogenic gas

This code represents the adverse health effects resulting from exposure to lacrimogenic gases, commonly known as tear gas. These effects typically involve irritation of the eyes, respiratory tract, and skin, leading to symptoms like excessive tearing, burning sensations, coughing, and difficulty breathing. It signifies a direct toxic reaction to the chemical agent.

Use this code when a patient presents with symptoms directly attributable to exposure to tear gas, such as during civil unrest, riot control, or accidental exposure. Documentation should clearly state exposure to "tear gas," "lacrimogenic agent," or specific chemical names like "CS gas" or "CN gas," along with the resulting toxic effects.

• Always code the specific manifestation(s) of the toxic effect first, such as conjunctivitis (372.00) or acute bronchitis (466.0), followed by this code as an external cause.
• Distinguish from allergic reactions or other types of chemical exposures; this code is specific to lacrimogenic agents.
• Ensure documentation specifies the substance as a "lacrimogenic gas" or "tear gas" to support this specific toxic effect code.