ICD-10-CM > S00-T88 > T20-T25 > T21 > T21.2 > T21.22 T21.22 Burn of second degree of abdominal wall Non-Billable/Non-Specific Applicable To Burn of second degree of flankBurn of second degree of groin Codes T21.22XA..., initial encounterT21.22XD..., subsequent encounterT21.22XS..., sequela