ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.0 > T22.03 > T22.039 T22.039 Burn of unspecified degree of unspecified upper arm Non-Billable/Non-Specific Codes T22.039A..., initial encounterT22.039D..., subsequent encounterT22.039S..., sequela