T63.31 - Toxic effect of venom of black widow spider T63.3 - Toxic effect of venom of spider T63.31 - Toxic effect of venom of black widow spider T63.311 - Toxic effect of venom of black widow spider, accidental (unintentional) T63.312 - Toxic effect of venom of black widow spider, intentional self-harm T63.313 - Toxic effect of venom of black widow spider, assault T63.314 - Toxic effect of venom of black widow spider, undetermined