ICD-10-CM > H60-H95 > H65-H75 > H71 > H71.3 H71.3 Diffuse cholesteatosis Non-Billable/Non-Specific Codes H71.30Diffuse cholesteatosis, unspecified earH71.31Diffuse cholesteatosis, right earH71.32Diffuse cholesteatosis, left earH71.33Diffuse cholesteatosis, bilateral