ICD-10-CM > S00-T88 > T33-T34 > T34 > T34.0 > T34.01 > T34.011 T34.011 Frostbite with tissue necrosis of right ear Non-Billable/Non-Specific Codes T34.011A..., initial encounterT34.011D..., subsequent encounterT34.011S..., sequela