ICD-10-CM > S00-T88 > T51-T65 > T56 > T56.9 > T56.91 T56.91 Toxic effect of unspecified metal, accidental (unintentional) Non-Billable/Non-Specific Codes T56.91XA..., initial encounterT56.91XD..., subsequent encounterT56.91XS..., sequela