ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.0 > T22.03 > T22.031 T22.031 Burn of unspecified degree of right upper arm Non-Billable/Non-Specific Codes T22.031A..., initial encounterT22.031D..., subsequent encounterT22.031S..., sequela