Toxic effect of venom of black widow spider, self-harm, subs

This code signifies a patient presenting with symptoms resulting from the venom of a black widow spider, where the exposure was deliberately self-inflicted. The "subsequent encounter" indicates that the patient is receiving follow-up care for this poisoning after initial treatment.

Apply this code when documenting ongoing management or follow-up visits for a patient who intentionally exposed themselves to black widow spider venom. This would include scenarios such as wound care, monitoring for systemic effects, or mental health evaluations related to the self-harm attempt.

• Always ensure documentation clearly specifies "intentional self-harm" and "subsequent encounter" to support this code.
• Pair this code with external cause codes (X-codes) to fully describe the circumstances of the self-harm.
• Do not use for initial treatment encounters; a different 7th character would be appropriate for the initial visit.