ICD-10-CM > S00-T88 > T20-T25 > T25 > T25.5 > T25.59 > T25.592 T25.592 Corrosion of first degree of multiple sites of left ankle and foot Non-Billable/Non-Specific Codes T25.592A..., initial encounterT25.592D..., subsequent encounterT25.592S..., sequela