Poisoning by antifungal antibiotics, sys used, undet, subs

This code signifies a poisoning event resulting from the systemic use of an antifungal antibiotic, where the intent (e.g., accidental, intentional self-harm, assault) cannot be determined. The patient is being seen for follow-up care or sequelae related to this poisoning after the initial acute treatment.

Apply this code when a patient presents for ongoing management or complications stemming from an antifungal antibiotic overdose or adverse reaction, and the provider's documentation clearly states that the intent of the poisoning is unknown or undetermined. This is appropriate for subsequent visits following the initial encounter for the acute poisoning.

• Always sequence this code after any codes for the specific manifestations or adverse effects of the poisoning.
• Ensure documentation explicitly states "undetermined" intent for the poisoning; otherwise, a more specific intent code should be used.
• Verify that the encounter is for follow-up care, as indicated by the "D" seventh character.