ICD-10-CM > S00-T88 > T20-T25 > T25 > T25.5 > T25.59 T25.59 Corrosion of first degree of multiple sites of ankle and foot Non-Billable/Non-Specific Codes T25.591Corrosion of first degree of multiple sites of right ankle and footT25.591A..., initial encounterT25.591D..., subsequent encounterT25.591S..., sequelaT25.592Corrosion of first degree of multiple sites of left ankle and footT25.592A..., initial encounterT25.592D..., subsequent encounterT25.592S..., sequelaT25.599Corrosion of first degree of multiple sites of unspecified ankle and footT25.599A..., initial encounterT25.599D..., subsequent encounterT25.599S..., sequela