ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.6 > T23.60 > T23.602 T23.602 Corrosion of second degree of left hand, unspecified site Non-Billable/Non-Specific Codes T23.602A..., initial encounterT23.602D..., subsequent encounterT23.602S..., sequela