ICD-10-CM > S00-T88 > T51-T65 > T63 > T63.4 > T63.45 > T63.451 T63.451 Toxic effect of venom of hornets, accidental (unintentional) Non-Billable/Non-Specific Codes T63.451A..., initial encounterT63.451D..., subsequent encounterT63.451S..., sequela