ICD-10-CM > S00-T88 > T20-T25 > T22 > T22.3 > T22.31 > T22.319 T22.319 Burn of third degree of unspecified forearm Non-Billable/Non-Specific Codes T22.319A..., initial encounterT22.319D..., subsequent encounterT22.319S..., sequela