Poisn by oth systemic anti-infect/parasit, undet, sequela

This code signifies a long-term or residual effect resulting from an undetermined poisoning by a systemic anti-infective or antiparasitic medication not otherwise specified. The initial acute poisoning event has resolved, but the patient continues to experience health problems directly attributable to that past exposure.

Use this code when documenting a chronic condition or permanent injury that is a direct consequence of a previous poisoning by an anti-infective or antiparasitic drug, and the intent of the poisoning (accidental, intentional self-harm, assault) cannot be determined. This applies to situations where the patient is no longer in the acute phase of poisoning but is being treated for its lasting effects.

• Always sequence this code after the code(s) for the specific sequela being treated (e.g., chronic kidney disease, nerve damage).
• Ensure documentation clearly links the current condition to a past poisoning event by an anti-infective or antiparasitic and that the intent was undetermined.
• Avoid using this code for acute poisoning events; instead, use the appropriate acute poisoning code with the 7th character for initial, subsequent, or encounter.