Toxic effect of venom of brown recluse spider, assault, subs

This diagnosis code indicates a harmful systemic reaction or localized tissue damage resulting from the venom of a brown recluse spider bite. The injury was intentionally inflicted by another person, and the patient is receiving follow-up care after the initial treatment.

Apply this code when documenting subsequent encounters for a patient who was deliberately bitten by a brown recluse spider and is presenting for ongoing management of the toxic effects, such as wound care for necrosis or monitoring for systemic symptoms. This includes visits for wound debridement, skin grafting, or follow-up on healing progress after the initial emergency or acute care.

• Ensure documentation clearly states the bite was an assault, not accidental.
• Confirm this is a subsequent encounter, not the initial treatment for the bite.
• Look for documentation of brown recluse spider identification or characteristic necrotic lesion.