Deep necrosis of underlying tissues [deep third degree] with loss of a body part, of ear [any part]
Convert to ICD-10-CM: 
941.51 converts approximately to:
- 2015/16 ICD-10-CM T20.319A Burn of third degree of unspecified ear [any part, except ear drum], initial encounterOr: 
- 2015/16 ICD-10-CM T20.719A Corrosion of third degree of unspecified ear [any part, except ear drum], initial encounter