ICD-10-CM > S00-T88 > T20-T25 > T23 > T23.1 > T23.19 > T23.199 T23.199 Burn of first degree of multiple sites of unspecified wrist and hand Non-Billable/Non-Specific Codes T23.199A..., initial encounterT23.199D..., subsequent encounterT23.199S..., sequela