ICD-10-CM > S00-T88 > T33-T34 > T33 > T33.5 > T33.51 > T33.512 T33.512 Superficial frostbite of left wrist Non-Billable/Non-Specific Codes T33.512A..., initial encounterT33.512D..., subsequent encounterT33.512S..., sequela