ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.5 > T24.59 > T24.592 T24.592 Corrosion of first degree of multiple sites of left lower limb, except ankle and foot Non-Billable/Non-Specific Codes T24.592A..., initial encounterT24.592D..., subsequent encounterT24.592S..., sequela