ICD-10-CM > S00-T88 > T51-T65 > T56 > T56.6 > T56.6X > T56.6X4 T56.6X4 Toxic effect of tin and its compounds, undetermined Non-Billable/Non-Specific Codes T56.6X4A..., initial encounterT56.6X4D..., subsequent encounterT56.6X4S..., sequela