Poisoning by unsp anesthetic, undetermined, subs encntr

This code signifies an adverse effect from an anesthetic medication where the specific type of anesthetic is unknown, and the intent (e.g., accidental, intentional self-harm) cannot be determined. It is used for encounters following the initial treatment of the poisoning.

Apply this code when a patient presents for follow-up care, monitoring, or treatment of residual effects after an initial poisoning event involving an unidentifiable anesthetic. This includes situations where the patient's condition is stable but still requires ongoing management related to the poisoning.

• Ensure documentation clearly states "undetermined" intent and "unspecified" anesthetic.
• Only use for subsequent encounters; the initial encounter would use the "A" seventh character.
• Always sequence this code after any codes for the specific manifestations of the poisoning.