ICD-10-CM > S00-T88 > T51-T65 > T61 > T61.1 > T61.11 T61.11 Scombroid fish poisoning, accidental (unintentional) Non-Billable/Non-Specific Codes T61.11XA..., initial encounterT61.11XD..., subsequent encounterT61.11XS..., sequela