Poisn by oth agents prim act on the resp sys, slf-hrm, init

This code signifies a patient presenting with adverse effects from intentionally self-administering a substance that primarily affects the respiratory system, excluding narcotics, sedatives, or other specified agents. The patient's condition is acute and requires initial treatment for the poisoning.

Use this code when a patient attempts suicide by ingesting or inhaling a substance like tear gas, pepper spray, or an unspecified chemical that causes respiratory distress. This applies to the initial hospital visit or emergency department encounter for managing the acute poisoning.

• Ensure documentation clearly states "intentional self-harm" and that the substance primarily impacts the respiratory system.
• Confirm this is the "initial encounter" for treatment of the poisoning. Subsequent care would use a different encounter character.
• If the specific agent is known and has a more precise code within T48, use that instead.