ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.3 > T23.36 > T23.369 T23.369 Burn of third degree of back of unspecified hand Non-Billable/Non-Specific Codes T23.369A..., initial encounterT23.369D..., subsequent encounterT23.369S..., sequela