ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.1 > T24.12 T24.12 Burn of first degree of knee Non-Billable/Non-Specific Codes T24.121Burn of first degree of right kneeT24.121A..., initial encounterT24.121D..., subsequent encounterT24.121S..., sequelaT24.122Burn of first degree of left kneeT24.122A..., initial encounterT24.122D..., subsequent encounterT24.122S..., sequelaT24.129Burn of first degree of unspecified kneeT24.129A..., initial encounterT24.129D..., subsequent encounterT24.129S..., sequela