ICD-10-CM > S00-T88 > T51-T65 > T54 > T54.3 > T54.3X > T54.3X1 T54.3X1 Toxic effect of corrosive alkalis and alkali-like substances, accidental (unintentional) Non-Billable/Non-Specific Applicable To Toxic effects of corrosive alkalis and alkali-like substances NOS Codes T54.3X1A..., initial encounterT54.3X1D..., subsequent encounterT54.3X1S..., sequela