Toxic effect of lacrimogenic gas, self-harm, sequela

This code signifies the long-term or residual effects resulting from intentional self-harm using lacrimogenic gas, commonly known as tear gas. It indicates that the patient is presenting for care related to a complication or condition that arose from a past self-inflicted exposure to this substance. These sequelae can include chronic respiratory issues, persistent eye irritation, or dermatological problems.

Use this code when documenting follow-up care for a patient who previously attempted self-harm by inhaling or being exposed to tear gas, and is now experiencing lasting health problems directly attributable to that event. This applies to situations where the acute toxic effects have resolved, but chronic conditions or permanent damage remain. Examples include chronic bronchitis, corneal scarring, or persistent dermatitis stemming from the original exposure.

• Always sequence this sequela code after the primary diagnosis describing the specific residual condition (e.g., chronic conjunctivitis, asthma).
• Ensure documentation clearly links the current condition to the past intentional self-harm by lacrimogenic gas.
• Do not use this code for the initial acute toxic effect; that would require an acute poisoning code with the appropriate seventh character.