Poisoning by antiasthmatics, undetermined, subs encntr

This code indicates a poisoning event involving antiasthmatic medications where the intent (accidental, intentional self-harm, assault) cannot be determined, and the patient is receiving active treatment for the sequelae of the poisoning after the initial encounter. It signifies that the patient is still under care for the adverse effects of the antiasthmatic drug exposure.

Use this code when a patient presents for follow-up care, such as medication adjustments, monitoring of organ function, or management of persistent symptoms, due to an antiasthmatic drug poisoning where the intent remains unknown. This applies to situations where the initial acute phase of treatment has passed, but ongoing medical attention is required for the poisoning's effects.

• Always assign an additional code for the specific antiasthmatic drug involved, if known, from categories T36-T50.
• Ensure documentation clearly supports that the encounter is subsequent to the initial poisoning event and that the intent is undetermined.
• Do not use this code for initial encounters or for sequelae that are fully resolved.