ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.2 > T22.23 T22.23 Burn of second degree of upper arm Non-Billable/Non-Specific Codes T22.231Burn of second degree of right upper armT22.231A..., initial encounterT22.231D..., subsequent encounterT22.231S..., sequelaT22.232Burn of second degree of left upper armT22.232A..., initial encounterT22.232D..., subsequent encounterT22.232S..., sequelaT22.239Burn of second degree of unspecified upper armT22.239A..., initial encounterT22.239D..., subsequent encounterT22.239S..., sequela