ICD-10-CM > S00-T88 > T20-T25 > T24 > T24.2 > T24.22 T24.22 Burn of second degree of knee Non-Billable/Non-Specific Codes T24.221Burn of second degree of right kneeT24.221A..., initial encounterT24.221D..., subsequent encounterT24.221S..., sequelaT24.222Burn of second degree of left kneeT24.222A..., initial encounterT24.222D..., subsequent encounterT24.222S..., sequelaT24.229Burn of second degree of unspecified kneeT24.229A..., initial encounterT24.229D..., subsequent encounterT24.229S..., sequela