Poisoning by oth systemic anti-infect/parasit, undet, init

This code signifies a poisoning event involving a systemic anti-infective or antiparasitic medication not otherwise specified, where the intent (accidental, intentional self-harm, assault) is unknown. The patient is in the acute phase of treatment for the poisoning.

Apply this code when a patient presents with adverse effects from an overdose or toxic exposure to a systemic anti-infective or antiparasitic drug, and the medical record does not clearly document the intent of the poisoning. This is appropriate for the initial visit or encounter where the poisoning is being actively managed.

• Ensure the documentation explicitly states "undetermined" intent or provides no information regarding intent.
• Confirm the substance involved is a systemic anti-infective or antiparasitic that doesn't have a more specific T36 or T37 subcategory.
• Always assign a secondary code for the specific manifestation(s) of the poisoning.