ICD-10-CM > S00-T88 > T20-T25 > T25 > T25.2 > T25.29 > T25.299 T25.299 Burn of second degree of multiple sites of unspecified ankle and foot Non-Billable/Non-Specific Codes T25.299A..., initial encounterT25.299D..., subsequent encounterT25.299S..., sequela