Toxic effect of contact w venom marine plant, assault, subs

This code signifies a toxic reaction resulting from direct contact with a venomous marine plant, such as certain types of algae or seaweed, where the exposure was intentionally inflicted by another person. The patient is presenting for follow-up care or treatment of residual effects after the initial injury has been addressed.

Apply this code when documenting subsequent encounters for a patient who experienced a toxic effect from a venomous marine plant due to an assault. This includes visits for ongoing wound care, management of persistent systemic symptoms, or evaluation of long-term complications following the initial acute phase.

• Ensure documentation clearly states the marine plant contact was an assault and that this is a subsequent visit.
• Always sequence this code after the primary diagnosis for the specific toxic effect or injury sustained.
• Do not use for accidental exposures or self-harm; those scenarios require different external cause codes.