Toxic effect of cntct with Portuguese Man-o-war, undet, init

This code signifies a harmful reaction resulting from direct contact with a Portuguese Man-o'-war, where the intent (e.g., accidental, intentional self-harm, assault) of the exposure cannot be determined. The patient is presenting for the initial treatment of these toxic effects, which typically involve severe pain, skin irritation, and potentially systemic symptoms.

Apply this code when a patient presents with symptoms consistent with a Portuguese Man-o'-war sting, and the medical record does not clearly indicate whether the contact was accidental, intentional, or due to an assault. This is appropriate for the initial visit where the patient receives diagnostic evaluation and primary treatment for the sting.

• Always assign an external cause code (V00-Y99) in conjunction with this code to provide more detail about the circumstances of the injury.
• Ensure documentation clearly supports the "undetermined" intent; otherwise, a more specific intent code should be chosen.
• The "A" seventh character indicates an initial encounter for active treatment of the toxic effect.