ICD-10-CM > S00-T88 > T20-T25 > T21 > T21.0 > T21.00 T21.00 Burn of unspecified degree of trunk, unspecified site Non-Billable/Non-Specific Codes T21.00XA..., initial encounterT21.00XD..., subsequent encounterT21.00XS..., sequela