ICD-10-CM > S00-T88 > T51-T65 > T56 > T56.1 > T56.1X > T56.1X1 T56.1X1 Toxic effect of mercury and its compounds, accidental (unintentional) Non-Billable/Non-Specific Applicable To Toxic effects of mercury and its compounds NOS Codes T56.1X1A..., initial encounterT56.1X1D..., subsequent encounterT56.1X1S..., sequela