ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.6 > T24.69 > T24.692 T24.692 Corrosion of second degree of multiple sites of left lower limb, except ankle and foot Non-Billable/Non-Specific Codes T24.692A..., initial encounterT24.692D..., subsequent encounterT24.692S..., sequela