ICD-10-CM > S00-T88 > T51-T65 > T63 > T63.3 > T63.31 T63.31 Toxic effect of venom of black widow spider Non-Billable/Non-Specific Codes T63.311Toxic effect of venom of black widow spider, accidental (unintentional)T63.311A..., initial encounterT63.311D..., subsequent encounterT63.311S..., sequelaT63.312Toxic effect of venom of black widow spider, intentional self-harmT63.312A..., initial encounterT63.312D..., subsequent encounterT63.312S..., sequelaT63.313Toxic effect of venom of black widow spider, assaultT63.313A..., initial encounterT63.313D..., subsequent encounterT63.313S..., sequelaT63.314Toxic effect of venom of black widow spider, undeterminedT63.314A..., initial encounterT63.314D..., subsequent encounterT63.314S..., sequela