ICD-10-CM > S00-T88 > T51-T65 > T56 > T56.5 > T56.5X > T56.5X4 T56.5X4 Toxic effect of zinc and its compounds, undetermined Non-Billable/Non-Specific Codes T56.5X4A..., initial encounterT56.5X4D..., subsequent encounterT56.5X4S..., sequela