ICD-10-CM > S00-T88 > T51-T65 > T63 > T63.9 > T63.91 T63.91 Toxic effect of contact with unspecified venomous animal, accidental (unintentional) Non-Billable/Non-Specific Codes T63.91XA..., initial encounterT63.91XD..., subsequent encounterT63.91XS..., sequela