ICD-10-CM > S00-T88 > T20-T25 > T25 > T25.6 > T25.62 > T25.629 T25.629 Corrosion of second degree of unspecified foot Non-Billable/Non-Specific Codes T25.629A..., initial encounterT25.629D..., subsequent encounterT25.629S..., sequela