Toxic effect of venom of black widow spider, assault, subs

This code describes the adverse systemic effects resulting from venom exposure due to a black widow spider bite, specifically when the bite was intentionally inflicted by another person. The "subsequent encounter" indicates that the patient is receiving follow-up care for the toxic effects after the initial treatment.

Use this code for patients presenting for ongoing management of symptoms such as muscle cramps, abdominal pain, hypertension, or other systemic reactions following a black widow spider bite that was determined to be an assault. This applies to visits after the initial emergency treatment, such as follow-up appointments with a primary care physician or specialist.

• Always assign an external cause code (e.g., Y03.0XXA for assault by bodily force) to provide more detail about the circumstances of the assault.
• Ensure documentation clearly supports the "subsequent encounter" designation, indicating ongoing care for the toxic effects.
• Do not use this code for initial treatment of the bite or for bites that were accidental or self-inflicted.