Poisoning by oth systemic antibiotics, undetermined, subs

This code signifies an adverse reaction or overdose from a systemic antibiotic not otherwise specified, where the intent (accidental, intentional self-harm, assault) cannot be determined. The patient is receiving active treatment for the poisoning during this encounter, but it is not the initial visit for this condition.

Apply this code when a patient presents for follow-up care or continued management of poisoning by an unidentifiable systemic antibiotic, and the circumstances surrounding the poisoning remain unclear. This is appropriate for subsequent visits after the initial diagnosis and treatment have begun.

• Ensure the documentation clearly states that the intent of the poisoning is "undetermined" and that this is not the first encounter for this condition.
• Always sequence this code after any codes for the specific manifestations of the poisoning.
• Do not use this code if the antibiotic involved is specifically listed elsewhere in the T36 category (e.g., penicillins, macrolides).