Poisn by unsp sys anti-infect and antiparastc, slf-hrm, init

This code signifies a patient presenting with adverse effects from intentionally self-administering an unknown systemic anti-infective or antiparasitic medication. The poisoning is a result of a deliberate act to harm oneself, and this is the first time the patient is being treated for this specific event.

Apply this code when documentation clearly indicates an overdose or toxic reaction to an unidentifiable systemic anti-infective or antiparasitic, and the intent is explicitly stated as self-harm. This is appropriate for the initial hospital visit or encounter for managing the acute poisoning.

• Always sequence this code first when it represents the primary reason for the encounter.
• Requires additional codes for specific manifestations of the poisoning and for external cause of morbidity (e.g., X60-X69 for intentional self-poisoning).
• Ensure the "initial encounter" seventh character is appropriate for the patient's first treatment for this specific poisoning event.