ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.3 > T22.33 T22.33 Burn of third degree of upper arm Non-Billable/Non-Specific Codes T22.331Burn of third degree of right upper armT22.331A..., initial encounterT22.331D..., subsequent encounterT22.331S..., sequelaT22.332Burn of third degree of left upper armT22.332A..., initial encounterT22.332D..., subsequent encounterT22.332S..., sequelaT22.339Burn of third degree of unspecified upper armT22.339A..., initial encounterT22.339D..., subsequent encounterT22.339S..., sequela