ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.Z > T50.Z1 > T50.Z11 T50.Z11 Poisoning by immunoglobulin, accidental (unintentional) Non-Billable/Non-Specific Codes T50.Z11A..., initial encounterT50.Z11D..., subsequent encounterT50.Z11S..., sequela