ICD-10-CM > S00-T88 > T33-T34 > T33 > T33.0 > T33.01 > T33.019 T33.019 Superficial frostbite of unspecified ear Non-Billable/Non-Specific Codes T33.019A..., initial encounterT33.019D..., subsequent encounterT33.019S..., sequela