Poisoning by unsp general anesthetics, undetermined, sequela

This code signifies the long-term effects or complications arising from an undetermined poisoning event involving an unspecified general anesthetic. It indicates that the initial acute poisoning has resolved, but the patient continues to experience residual health problems directly attributable to that exposure. The specific general anesthetic involved could not be identified, and the intent of the poisoning (accidental, intentional self-harm, assault) is also unknown.

Apply this code when documentation clearly links a current, chronic condition or residual symptom to a past poisoning by an unknown general anesthetic, and the intent of the poisoning was not determined. This is appropriate for follow-up encounters where the sequelae are being managed, rather than the acute poisoning itself. Use this code after the acute phase of the poisoning has passed.

• Always sequence this code after the code(s) for the specific sequela being treated.
• Ensure documentation explicitly states the poisoning was by an "unspecified general anesthetic" and the intent was "undetermined."
• Verify that the encounter is for the management of the long-term effects, not the acute poisoning.