ICD-10-CM > S00-T88 > T51-T65 > T59 > T59.6 > T59.6X > T59.6X1 T59.6X1 Toxic effect of hydrogen sulfide, accidental (unintentional) Non-Billable/Non-Specific Applicable To Toxic effect of hydrogen sulfide NOS Codes T59.6X1A..., initial encounterT59.6X1D..., subsequent encounterT59.6X1S..., sequela